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Thomas A. Edison Papers 

Rutgers, The State University 
endorsed by 

National Historical Publications and Records Commission 
18 June 1981 

Copyright © 1987 by Rutgers, The State University 

All rights reserved. Nopartofthispublicationincludinganyportionoftheguldcandindcxorofthcmicrofllmmay 
be reproduced, stored in a retrieval system, or transmitted in any form by any means—graphic, electronic, 
mechanical, or chemical, including photocopying, recording or taping, or information storage and retrieval 
systems—without written permission of Rutgers, The State University, New Brunswick, New Jersey. 

Tlie original documents in this edition are from the archive at the Edison National Historic Site at West Orange, 
New Jersey. 


Rutgers, The State University or 
New Jersey 

Edward J. Bloustein 
T. Alexander Pond 
Tilden G. Edelstcin 
John Gillis 

New Jersey Historical Commission 
Bernard Bush 
Howard L Green 

National Park Service, Edison 
National Historic Site 
Roy W. Weaver 
Edward J. Pershey 
Smithsonian Institution 
Bernard Finn 
Arthur P. Molclla 


James Brittain, Georgia institute of Technology 
Alfred D. Chandler, Jr., Harvard University 
Neil Harris, University of Chicago 
Thomas Parke Hughes, University of Pennsylvania 
Arthur Link, Princeton University 
Nathan Rcingold, Smithsonian Institution 
Robert E. Schofield, Iowa State University 


William C. Hittingcr (chairman), RCA Corporation 
Edward J. Bloustein, Rutgers, The State University of NJ. 
Cees Bruynes, North American Philips Corporation 
Paul J. Christiansen, Charles Edison Fund 
Philip F. Dietz, Wcstinghousc Electric Corporation 
Roland W. Schmitt, General Electric Corporation 
Harold W. Sonn, Public Service Electric and Gas Company 
Morris Tancnbaum, AT&T 


-quelyn Miller 

Research Associates 
Douglas G. Tarr 
Mary Ann Hellrlgcl 
David W. Hutchings 

Joseph P. Sullivan 
Karen Kozak 
Granville Miller 



Alfred P. Sloan Foundation 
Charles Edison Fund 
The Hyde and Watson Foundation 
Geraldine R. Dodge Foundation 


National Science Foundation 
National Endowment for the Humanities 


Alabama Power Company 
Amerada Hess Corporation 

Atlantic Electric 

Association of Edison Illuminating 

Battellc Memorial Institute Foundation 
The Boston Edison Foundation 
Cabot Corporation Foundation 
Carolina Power and Light Company 
Consolidated Edison Company of 
New York, Inc. 

Consumers Power Company 
Corning Glass Works Foundation 
Duke Power Company 
Exxon Corporation 
Florida Power & Light Company 
General Electric Foundation 
Gould Inc. Foundation 
Gulf States Utilities Company 
Idaho Power Company 
International Brotherhood of Electrical 

Iowa Power and Light Company 

Mr. and Mrs. Stanley H. Katz 
Matsushita Electric Industrial Co., Ltd. 
McGraw-Edison Company 
Middle South Services, Inc. 

Minnesota Power 

New Jersey Bell Telephone Company 
New York State Electric & Gas 

North American Philips Corporation 
Philadelphia Electric Company 
Philips International B.V. 

Public Service Electric and Gas 
RCA Corporation 
Robert Bosch GmbH 
San Diego Gas & Electric 
Savannah Electric and Power Company 
Schcring Plough Foundation 
Texas Utilities Company 
Transamcrica Delaval Inc. 
Wcstinghouse Educational Foundation 
Wisconsin Public Service 

A Note on the Sources 

The pages which have been 
filmed are the best copies 
available. Every technical 
effort possible has been 
made to ensure legibility. 


Reel duplication of the whole or of 
any part of this film is prohibited. 
In lieu of transcripts, however, 
enlarged photocopies of selected 
items contained on these reels 
may be made in order to facilitate 



REEL 89 


fanio.'bnJoublodly u»o. grcaleit 
brontor,and IhogTcatoit bollovcr Ini 
Win *clf,‘wiltingonithli* continent,! 

not jrot acknowledge'!^ Oliabll. 
Jltjr.lo M'porfccl hU 'otetHi lamp an; 
to make it ft practical enbitUuto for 
Iffuliffht In.largo clllen;and .1 In,.: 
i«P«n«n. . Yet; from pwaonMniUca-j 
tlon., tlio km companion nnM not bo I 

thuuio JDo.(l 'Ll 

dlatoly follow, by iuiy weans. L 

I'sMSJa 1 ! 

outfitrtci fret 

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ftopwlDg o Teet to . Fortnight U j| t,. 

• Begin Operation! I. Hew York to ' ■ 

J00M7 or Febinory. . 

-i ^|' tuOolopomlll^, 

Menlo Park Scrapbook, Cat. 1068 

This scrapbook covers the period April-December 1881 and contains 
newspaper clippings and other material relating to the Paris Electrical Exhibition 
of 1881. Many of the clippings des'cribe the exhibits of Edison and his competitors. 
Also included are guide leaflets, information bulletins, and official notices 
concerning the exhibition. Much of the material is in French. The front cover is 
labeled "Paris Exposition Scrapbook." The spine is labeled "T. A. Edison. No. 51." 
The book contains 144 numbered pages. 


August 1 to November IS, 1881. 



Washington, D. C., March Sf , 1881 . 

TJie President of the United States, in the absence of any (special provision by Congress for the repreh 
sentation of the United States, bus appointed nn Honorary Commission, under the charge of a Commissioner 
General and nn Executive Commissioner. 

This Commission will be the official channel of communication between the American exhibitors and 
the French General Commission at Paris. 

Exhibitors will linve to bear all expenses of packing, shipping, nnd transportation, delivering their 
exhibits at the Palace of the Chnmps-Elysdcs at Paris between the 1st of July and the 1st of August; they, 
will also defray all expenses of installation nnd immediate care of their exhibits. There will be no charge 
for space or flooring nnd but a limited charge will l>c made for motive power furnished to exhibitors. 
Insurance is at the option of exhibitors and nt their expense. Objects exhibited will be protected against 
piracy of inventions or designs by complying with the French law of May 23, 1808, on the subject. (See 
Appendix II.) 

Tho General Regulations for the Exhibition, prescribed by the French Minister of Mails and Telegraphs, 
are hereto annexed, nnd will supply intending exhibitors with all necessary information. ' 

The time for receiving applications, formerly fixed for March 31, 1881, hna been extended in llio ease 
of American applications, at the request of the United States Government, until the 15th of May, 1881. 
Applications for spnoc should bo filled up in accordance with the accompanying form, in either French or 
' English, and sent to the Department of State at Washington not later than the 20th of April, 1881, to 
ensure transmission to the French Commissioner General nt Paris in due season. 

The shipment of articles for exhibition should be so conducted that they may bo delivered nt the Palace of 
the Champs-Elyste, in Paris, between the 1st nnd the 15th of July. Tho Acting Commissioner General will 
\ endeavor to officct some favorable arrangement with steamship lines for the transportation of goods nt lessened 
expense to the exhibitors, nnd duo notice thereof will be given to all exhibitors whose applications for space 
have been filed. Information in regard to the usunl terms of shipment can be obtained from the United 
States Dispatch'Agent at New York, Mr. Rndclifle Baldwin, No. 53 Broadway. Letters of inquiry ad¬ 
dressed to Mr. Baldwin should enclose stamps for pre-payment of return postage. 

It is understood that a number of exhibitors have mndo direct application for space to tho French 
Commissioner General, under tho provision of Article 12 of the French Regulations. Care will be taken 
to ensure that such exhibitors shall be on an equal footing with other American exhibitors, and their 
interests in like manner protected by the United States Commission. 

All communications in regard to the admission of applications and requests for forms, and generally 
all correspondence in relation to tho preparation and exhibition of articles, should be nddressed, postage 
paid, as under. Correspondence for the American Commission in Paris should be nddressed to “Mr. 
George Walker, Executive Commissioner of the United States, United States Consulate General, Paris, 

Requests for information on any points not covered by this circular or its annexes will bo cheerfully 
answered by the undersigned. 

Department of State, Washington, D. C. 


The Assistant Secretary op State, Acting Commissioner General, 
George Walker, Honorary Executive Commissioner, 

George E. Gouraud, Honorary Commissioner, 

Charles R. Goodwin, Honorary Commissioner, 

dittcovuriefl have recently called public attention, very particularly, to wl 
■ented in the progniw of iiianufiicturiiig industry liavo avniletl themielves o 
St, multiplied their application in all branch™ of that industry; it seems, to>i 

£KiSdr3tal!!? U h * heW * VmU ‘ 11 ,h-n meBl 0,1 thu mh clft y of 8v«i»b«v 1881, I 

froi.^mnng ll.o Fmich imsiilmn,, a„,l t!,rc. from among llm foreign momtor. of ] 

of iuch foreign govornmaoU u aliall n y * * ^ 

Mtriolty aliall bo omlor tho patrolman or tbo Slate ' l'| 

ioptcilfor tile gnvonimeot of tlm Intmintlmml .Hint 

II appoint the conimlaeloiier gonornl eainnnion of electricity aliall be aubinltteil 

International Exhiiiition of Electricity, Paris, 1 


Article 1. Tltc InUirimtionnl Exhibition of Electricity, authorized by a decree bearing date of 
October 23, 1880, shall lie opened at Paris, at the Pulace of the Champs-Elystcs, on the 1st day of 
August, 1881, and closed on tltc 16th day of Novomlicr, 1881. r 

Art 2. The C ss i| i tiled by the decree of November 20,1880, of which the Minister of Posts 
and Telegraphs is to bo the presiding ofliuur, shall lie consulted in regard to all measures connected with 
the general organization of tho International Exhibition of Electricity. , . . . 

°Aht. 3. The means necessary for tho organization and hulthng of tho Exhibition shall bo derived 
■I'frnm such’ pecuniary aid as may be granted by thu State and by a gunrmitoc association, the subscribing 
members of which have pledged themselves to claim no profits alter tho amount of their contributions shall 
ittive lieen repaid to them, witli interest at ■! per cent. 

When thu accounts of the Exhibition shall lie settled, the net profits shall (after the payments due to 
tho sulwcriliers of the guarantee capital shall linvo been deducted) lie turned over to the State, which shall 
apply them, in ncconlntico with the suggestions of the Commission of Organization, to the promotion of 

"''''art^LT lVoli'mi'al Co.dttee anil a Financial Committee shall be appointed. The Technical 

Committee shall he composed of memlx-rs of thu Commission of Organization, to whom persons not tielong¬ 
ing to that Commission may lie added by ministerial ortler. The Committee on Finance shall be com|ioscd 
of members of the Commission of Organization anil of members of the guarantee association. 

Akt. 5. The Commissioner General, appointed by the decree of October 24, 1880, shall have charge, 
under the authority of the Minister of Posts and Telegraphs, of the execution of the decisions adopted. 
Tho Commissioner General shall have the direction of the clerical force employed. 

Apt. G. The Commissioner General, or, in his absence, his secretary, shall have the right to lie present 
at the sessions of the Commission of Organization and of the committees, and shall have the right of dis¬ 
cussing measures, but not that of voting upon them. ... 

Art. 7. Foreign countries which shall have signified their intention to lie represented at tho Inter¬ 
national Exhibition of Electricity shall lie requested to designate Special Commissioners. Ihcsc latter shall 
correspond directly witli the French Commissioner General. 

Airr. 8. Requests from foreigners or French citizens for the admission of articles should lie worded at 
far ns possible according to the blank form appended to these regulations, and should lie in the hands ol 
the Commissioner General at Paris not later than the 31st day of March, 1881.* 

Apt. n. The Technical Committee shall decide, without appeal, concerning requests received from 
French citizens for the admission of articles. 

Airr. 10. The Commissioner General shall notify exhibitors previously to May 15, 1881, of tin 
admission of their goods, and also of the extent and situation of the space allotted to each one of them. 

Art. 11. Foreign Commissioners shall have thu privilege of asking for and of receiving, in a lump 
the space necessary for the articles to be exhibited by tlie citizens of their res|iective countries. 

The cumulative applications of foreign Commissioners must lie in the builds of the Commissionei 
General liefore March 31, 1881. The general plans for the allotment of the space granted in pnrsuani-i 
of these cumulative applications shall lie submitted to the approval of the Commissioner General. 

Art. 12. Exhibitors residing in countries which shall have designated no special commissioners mil) 
corrcsiKind directly with the French Commissioner General. 

Art. 13. Printed blank forms of application for the admission of goods shall be furnished, on appli¬ 
cation, to parties interested, at the following places: 

The Ministry of Posts and Telegraphs, No. 101 rue de Crenelle Saint Germain; the office of the 
Commissioner General, in the Palace of the Champs-Elysies, room No. 4; at the rooms of tho Chambers 
of Commerce anil of tho Scientific Societies of Paris and of tho Departments. 

Art. 14. The principal articles which will be received for exhibition are the following: 

Apparatus for the generation and transmission of electricity; natural and artificial magnets; compasses; 
apparatus for the study of electricity; applications of electricity to telegraphy and the transmiss— of 
sound; to the generation of heat; to illumination and the generation of light; to tho light-house anil 
signal service; to signal apparatus; to mining, railways, and navigation; to military affairs; to flip line 
arte; to gnlvanoplasty, elcetro-chemistry, and the chemical sciences; to the generation and transmission of 
motive power; to tho mechanic arts anil clock making; to medioino and surgery; to astronomy, metcor- 
' ology, and geodesy; to agriculture; to registering apparatus; to the working o[ the various kinds of 
mnciiincry iised in mniuifiictiires i. ‘'"“'“t.'c!„r tt nlretrieUv^^iibliogmiliiral^^tnm^ 

but formerly used "in electrical studies anil-in the application of electricity; bibliographical collections of 
workB on electrical sciences and tho miinufiipturo of electrical instruments. . , 

Art. 16. Articles admitted for exhibition shall bo received m tho incloaurc of the Palace of tin 

Cbamps-ElysCsa on and after July / j )car tho addresses and the special labels furnished by the Com- 

Tho plans for the arrangement of the goods and the designs for the decorations shall bo submitted to 
the ^^“^iv^^weTIdl furnished, at a price hereafter to be agreed upon, to such exhibitors 

as may desire it. , „ . . , i v r or t ho experiments necessary for tho labors of tho 


admission 0 

Art. 19. Tho Exhibition shall be open to tho public daily from 8.30 A. M. to G P. »!., and from 8 to 


1st. On week days— ___ j f r _ 

From 81 to 11 A. -- 1 00 

From 11 A. M. to G l’. -- j gp 


Aut 23 A strict surveillance for the prevention of theft shall he organized by the olTiccrs in the 
employ of the Commissioner General, aided l.y the police. Tho most thorough .PWMtranBjdMll^botakm 
against fire. Nevertheless, the management shall noHie rosponsdiMor ^h 

_, 24. Articles placed on exhibition shall m 

special permission from the Commissioner Geneml. 

“'No^w^hairhe'inade, nor shall any photograph lie taken, of any article placed on exhibition, 
bout the express permission of the exhibitor, vistal by the Commissioner General. , - , . 

Art. 25. Exhibitors shall themselves defmy the expense of keeping m proper order and of cleaning 

the arb^s^e. ^ j,| uuu s | u ,n |,„ furnished to such exhibitors as may desire it for the storage of tlieir 

boxes or cases during the whole time of the exhibition. Exhibitors shall be obliged to pay a charge ot b 
francs per cubic metre. Any rase whose dimensions are less than one cubic metre shall pay the price *cd 
for one metre. Tho expense of returning empty cases, and ot putting .them in proper order, shall he 
defnijul^b^dic cxln ntom.^ ^ (• 01 . c , i( ,„ exhibitors shall enjoy the guarantees furnished by the law of May 
23,18G8, to parties making invention entitled to a patent, or models uml industrial designs that may be 
submitted to the board of experts, (Conseil des prud ’homines.) It shall be sufficient for them to de|>osit 
at the office of the Prefect of the Seine, during the first month after the opening of the Exhibition at the 
latest, an application for n certificate of guaranty for the article exhibited. Such certificate, which shall uc 
furnished gratuitously, shall be good from the day of admission until the end of tho third month after the 
closing of the Exhibition 



5 Art. 28. A general catalogue of the Exhibition shall he prepared under tho direction of the C0111- 
, missioncr General. The contract for doing this work shall he awarded to the most satisfactory bidder. 
S The party to whom the contract for the preparation of the general catalogue shall be awarded may 
i! miiniento directly with e . ’ "-’- - '--■“•-I.“- r 

municate directly with exhibitors whose names are officially registered, for the insertion of advertisements, 
1 notices, and cuts relative to tho articles sold or manufactured by them. _ 

! Art. 29. Diplomas of merit and medals of various classes shall be awarded in pursuance ot the 
i recommendation of a jury for whose composition provision shall be made hereafter. . 

I Art. 30. All communications in relation to the International Exhibition must bo addressed, post-paid 
to tho Commissioner General of tho International Exhibition of Electricity, room No. 4, Palace of till 
Champs-ElysCes, Paris, (Au Commissairo GCnOral do l’Exposition Intornutionalo d’Electricit£, au 1 alau 
des Clmnips-ElysCcs, parte No. IV, it Paris.) 

-The foregoing regulations having beenadopted-by the- 

on this Otli day of December, 1880. 

By the Minister: 

Commissioner General. 

[APPENDIX II.—Translation.] 

states ©ommissiott, 
{Department of State, 
■w^sH^isrcraoisr, r>. a. 

Ho.' . 


Exposition Internationale d’Electricite, Paris, issi 


110 .'. 


demeurant it J . 

denmnde ft fitre adtnis il exposer les objets ci-aprfis CnoncCs: 

DCclnmnt nvoir pris connaissance du Riglement gGnGral ct y adherer, je dfeire obtenir lc 
dfaignCs ci-dessous, mix conditions fixCcs par les articles 16,17, ct 18 dudit Higlcmcnt gCntiml. 

{ Longueur:. 

Largeur: . 

{ Largeur en fapade:. 


Force motricc:.cbevaux-vapcur, cliaque jour pendant.— heures, 



the pams eleS 

ElectTidty has .been iposipohfd until th6 Tifh InatArtt-o# ! EXHIBITION, 

cfccoant’of theunivenal 'arrears df exhibitors, not-fit:single( miiE r«l«U a’liuWrio whl 
nation; Franc* hpreelf not afcBOted, being in 'ftrtyrtiing'* tta |_ time*, w»* lar o enough to 

nation; Franca hpreelf not cjfcented, being in'anything* tike I 1 time*, was lar to enough to hold a general 
a stale*of readiness. • Tha exhibition hoWever^rtWitlSeS to International Exhibition, now xonrccly aufllcca 
be one of unusual interest; • Engines* amounting- irt • the I f“r tho uneolal hcIcuco of electricity. Tho Pari* 
aggregate to over two thousand hoVse-powdr Mill supply With: kloctrtoal Exhibition, which wa» oponed to tho 
power such a humber of electric lamps as never have been «; r“ bll ° ? n Au tf* nth, 'will remain open until , 

™L b i u i 1 r di .K hm&L 11 wiii ^ 

Electrical Exhibition, which waa opened to tho 
jublto on Aujj. 11th, will remain ^open until 

Kloctriclnna will bo\old°™n'fkptomi^lSth. 
Wo shall, no doubt, then get positive data on 

elect rio light Utero ropronontod. AUtonSVot 
quite ready, however. M. Trouvo's motor at- 

"tefceme JlRbt of .ffty lUpH^nd tffq4W pofflfr pn/jlaijfl • tracts mueli uttouUon ; it hoa bean applied by 
ocpupies a full quarter of th, total area, .pud. ViU maintain 1C. Tliwandier to . .matt balloon. Tl.o bnllooa 
fofi fiwself q Y cr y prqud ppsjtfoq, although qqr pxh^uqfs, | is olongnted, witli pointed ends (its longost dla- 
unlike tfipsc of pthqr countries arc entirely rvHhout : St,HP, 1 "?V> r hortxontalj, and, whoa Inflstod 

Ip the section alipttpil (otl|e United istatqs'iyq l, ra p iqqmj ; ft,!? * . ajr 5S?mSu5ato 

' 220 grammes? "with , "^ 0 lsri;cr tC c3/, wSightog' 

hiptqiiqql rpprespntqtiqfrs, and Mil include tho original appq, moire per second. With two colts and n aotnr 

tnjRns who Wdqnq sa much tq qdvartcq tl,e ;?isn« of 1 “>°™ ,» T'i 

clpctricijy. Ip regprdlq ‘he elpptric light evq|7 prominent, , J f .* " V , u " " 1 " 1 ' 

Company, vrl jlrts.Broclpe.src lamp of great two in muv drenmstanres In tW 

inpandqscentllillt,wdl.lllqr|upatq th 5 «put!r-ei(St S rn pprtipq, , Contra of tho grounddloor Is a UghUiouw sur-. 
T? AnglqtAinprican B W h Cqpipany thq eastprp pgrttpn of rounded by water. On this miniature lake 
thq edip.ctj,- ant) Ihfi.quMtioq pf Sunday dupes pas hppq Mom. TrouvC navigates In bis olootrlo boat, tho 
iwllently coijtprptpnted tjwqugh tbp* of d» screw of which is worked by ono of his motors, 
%! pf Crawford, the PrfSliW of ffiq finltfh .CqmmU,|qm - and a bichromate of potash battery (six colls). 

conform, to (hm ppcdssary extent; with the pustqms qf (ftp, | twenty persons will bo ablo .to hear at a timo In 
oqHqtfXihut tftqy keep the $af)>_ath for thfPlse!vqs;qs p i each saloon. ’Urey are not yet opened to tho ; 
qon.trad|pg day. The large palqn in the Nprth Gqllery fias 11 public, but I bad the good fortuno of br ing 

rannot be overrated. It is expected that the President Mil 
n person inaugurate the exhibition on the toth inst. with 
rfU commTnce on "the following day ^ Pf k"'” 1 public 

dndu*kiaJl Hua), (2u0-u*J- l /'i$7. 

&e., sysUiuiH of olcctrio-light will bo exhibited 
uvery evening from 8 till H. Of theeo mid other 
sxhibita I ahull give more particular* next wc«k. 

C. Dotaillc, 

oissssifarsh^Wci^SriKs.":; jis^u!«a«^a=nta»as: , w?ss; 

> We understand the Edison Light Company has bi 
. rifled that tho Ercnch Government, after inspecting 
electric lights in the Paris Electrical Exposition, 1 
lectcd the Edison Company to light the Grand Opera 
k, of Paris with the Edison electric light. The Edlsoi 

mcr of 1 ntoiitH, mid forwarded to the Iiitorimtionnl Electri- 
1 College, winch eonveiics in 1’nri.s Aiignnt tat. Or. ]•’, 
eeninii, Exnminer of the Class of “ Hlectrieity, ” Ims been an. 
tnted to represent, the I’ntont Office nt the Congress, mid h,. 
t to fulfil Ins duties on the 20th of July. The selection of 
. Prccmnti is n fortunate one, since Ins ability anti expo 
nee in Patent Office matters qualify him to credibly rente- ■ 
wont tins country. 1 , 

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.'the pabib eleotbioal exhibitioh. 

[Continual from Jlrtt »] 

Two, five, ten, and twenty light machines aro used In the 
, Exhibition to light (ho grand nWo and oilier halls on the flrst 
floor. The machines tiro exhibited by Messrs. Santlcr, 
Lcmonnler & Co., owners of tho nuw Gramme polenta In 
■ Franco; also by the Spanish Electrical Socloty and by tho 

sIzcToTmuchlno” 5 No. 1, for 1 to 3 lamps; No. 2, for 3 to 
8 lamps; No. 8, for 0 to 8 lamps; No. 4. for IS to 10 lamps. 

' Nos. 8 and 4 hove not been experimented with ns yet, hut It 
is thought they will excel Nos. 1 and 3. 

The Weston dynamo machine exhibited differs only, 
slightly front those already described In our columns. It] 
will bo obsorved by reference to tho eugravlug that tho flcldi 
magnet Is compound, Uolng composed of n number of electro¬ 
magnets with cylindrical cores. j 

The Slcmona steam dynamo used in connection with the 1 
electric railway Is well represented by our engraving. 
Tho generator and steam motor are mounted on a common 

base, tho motor being a rotary steam engine. 

Tho car shown In Fig. 0 docs not differ materially In np-l 
penranco from an ordinary street car. The electric motor' 
placed under tho car floor Is entirely Inclosed. It receives' 

' Its current from the rails, nnd the power Is transferred to the 
car axles by mcanBof pulleys nnd holts. 

Other Important exhibits In the various departments will i 
be described In later Issues. Altoilt one-third of the 1,800' 
exhibitors arc from countries other than France. A list or 
the American exhibitors appears below, irony of them are i 
represented in two or more classes. The Edison exhibits arc 
naturally attracting much Interest. They appear in each of I 
tho six general groups of ex-; 

Mbits, and represent fifteen j 
different classes. They oroj 
j shown In two salons, whlcbj 

tlon of the Edison Bystem of 
: Incandescent lighting, as well! 

Inventions and discoveries.! 

It Is remarkable that the! 
labors of a single Investigator, 

1 and Inventor should cover a 

Thos. A. Edison, Menlo Park, Now Jeraoy. 

J. Morgan Eldredgo, Philadelphia. Fa. j 

Electro-Dynamic Company, Philadelphia. 

August Parts, Philadelphia. 

Thoodoro Bclitnanser, Allegheny City. Pa. ! 

U. 8. Signal Ofllco, Washington, D. 0. j 

Joseph M. Hlrsch, Chicago, El.' ! 

Milo G. Kellogg, Chicago, El. 

Standard Electric Light Co.. Now York. 

U. 8. Electric Light Co., Now York. 

Weston Electric Light Co., Newark, N. J. 

White House Mills, Hoostic, N. V. ■ y 

Wilson P. DoiIbou, Philadelphia. 

Alox. II. Ege, Meclianlcshurg, Pa. 
lloosao .Tunnol Trinitro glyccrluo Works, North Adams, 

William J. Philips, Philadelphia, Pa. 

J. P. Bailey. . 

Alex. Graham Bell, Washington, D. C. 

Sumuer Talntcr, Washington, D. C. 

Charles Williams, Jr., Boston, Mass. 

Conolly Bros. & McTlghc. Washington. 

Elcctrogrnphic Manufacturing Co., New York. 

Elisha Gray, Highland Park. 111. ! 

Pond Indicator Co., Now York. j 

Chas. W. Hubbard, Boston, Mass. . ( 

A. E. Dolbcar, Somerville, Mass, j 

E. W. 8crrell, Jr., New York. j 

Clinton M. Bell, Troy, N. Y. \ 

Photo-relievo Co., Now York. _. • 

W. G. A. Bon will, Philadelphia. 

Electric Purlflor Co., Now York. 

Uobert Hasse, Indianapolis, Ind. 

Volney W. SLison, Providence, R. L 
U. 8. Patent Office, Washington. 

John Michels, New York. , 

Smithsonian Institution, WashlngtrtT 

j tlonal exhibition. 

■ On tho 25lli of August an 

| reading 1 room of tho Exhibl-I 
a defect in the fitting up of 

[ Ttonlarawas^ulckiy givenj 
and tho fire wa9 ext Ingulfed! 
before it had spread far. Ini 
: attempting to tear out thel 
(wires with his bands a Arc- 
man received electrical! 

| shocks and was twice j 
j knocked down. A scientific j 
. | commission, headed by MM. j 
• Dumonccland Brcguct, after-1 

to Sir Joseph Itanks, then president of the Roya 
document U stated to be the fust descriptor 

balloon constructed according to the principles advocated by 
Dapuy de Lome, and a number of other electrical instm- 

vibrator is set in operation; when it is ascending another bell 
rings. This effect is obtained very limply by a valve, which 
is in equilibrium when the balloon keeps its level, and is moved 
|by a slight wind. The formal opening was to take place ycstcr- 

f |day. by a visit of the President of the Republic, and tbc doors 
' will be thrown open to the public to-day, although much remains 
; to be done for the completion of the display, which will be a 

: The French Government has appointed a Committee, pre- 
>j.,, sided^over by Rear-Admiral Uourgcol.*, to ttudy the different 


PARIS. International Exhibition of Electricity. PARIS' 



PARIS, 9, Rue de Fleurus, 9, PARIS 

Mag'kth, 1881. 


I have (he honour lo inform you Hint llte General Printing Office of 
A. Lnlture lias obtained tho right of printing the offtciafcatalogue .'of the 
International Exhibition of Electricity.' 

Electricity is occupying public attention; though it is a mysterious 
power, science will soon have unravelled.its inmost secrets. Everybody 
is preparing lo follow with Uic greatest interest the important experi¬ 
ments which are going to he made in the Palais de I'lnilustrio. 

Compiled with the greatest care, fromthe documents furnished by the 
Administration or by the exhibitors themselves, the Official catalogue 
will he a sort of exacl, complete, historical and technical encyclopedia 
of every thing concerning Electricity. It will he an indispensable Vade- 
meemn for scientific and commercial men whom this subject interests nnd 
will be equally sought after by the general public. Its moderate price 

1. By special appointment of lliu General Commissioner or tliuEililliilion the Official cala- 

(one franc) will place il within llio reach of the smallest means.' We are 
convinced by the above reasons that the circulation of the Official cata -1 
logue will attain a very high figure, and will conslilutc a source of publi- ! 
city of unusual importance. ' : 

Tjic rides .of the Exhibition allow you as exhibitor to insert gratis in 
the body of the official cataloged, and in each class in which you exhibit, 
beside your name and address, eight lines of about twenty five letters 
each, containing particulars ofyourindustry. Wo should be obliged to you 
if you would forward to iis os soon as possible the text of this insertion. 

To malic up for the smallness of tho space which is accorded gratis, 
exhibitors ore beside niilhorized to insert at their own expense,in the 
official catalogue supplementary information concerning Iheir business. 

These insertions are of tlireo kinds : 

I" A more or less abridged mention interpolated in the list of ex¬ 
hibitors which will be printed in two columns. — The line of 

25 lel,ers - ' ..Price, OTr. 

2" A special mention more or less detailed interpolated in the descrip¬ 
tive and technical summary relative to each class. — The line of fifty 
letters. ..Price, 12 fr. 

5° Advertisements in the strict sense of the word, with or without « cli¬ 
ches » printed on a special page at the end or the catalogue. — The 
page with or without engravings printed in black. . Price, 400 fr. 

The page with or without engravings printed in two colors. P. 000 fr. 

We will undertake, if needful, (lie composition of the notices of adver¬ 
tisements which, in any case, will be submitted to tho approval of the 
General Cominisioncr. 

We remain Sir, 

; i , Your obedient servant. 


domimtnitnftb Article. ^ ^ |l 


►-morrow. To day, however, there was a nort of " 
At ten o'clock President Gr6vy, accompanied by 
of tho Cabinet and by prominent electricians, went 
>ition. Later on in tho day a largo number of poop 
▼cd invitations, passed through tho great halt of the 

) brittle. ^ ! | also to facilitato operations in tho photographio studio, 

iTinv nw i?Mfrrniif*iTv ; Two rooms aro taken up with tho exhibits of Mr. Edison. Thcso 
rioK. ijiikblKlLl t Y, | txvo rooms glvo a remarkable impression of tho man himself. Ho 

nt'Vi'ON dfnt shows a wonderful array of instruments, uniong which aro apparatus. 

‘ “ 'paiuk Amt to ! ^ or measuring tho resistanco of lamps ; for measuring tho energy 

lectricitv is In bo ononod to fbo 1 ® on * un,c d by lamps; rheostats, in which tho resistanco is varied 
thorn wan* a°Bort° o7“ iiriroto >'Y "Hcring tt.o ,, on carbon in Ibo circuit! 

Ir6vy, accompanied by lovcrol ? thormagalyanomolcr; rclaya of all kind. | printing telegraph, 

lincnt electrician. want round f " r l ,rlv “ t " bac«i printing telcgroplu for tbo Block exchange! 

l largo number of 1 nconlc who ““ aulo " 1 “" 1 ' *J»toin for trnn.mitting handwriting ! tlio quadruplox 

gh tL great lmll of ttui l'ulnin i “l'" 1 ™ , of nccordiog to which two mc«»ogc« may bo aent 

can bo and' oro advantageously^ employed 

F exposition mmkm^\'}$^^sss^^^&^i 

VtLiOTRlbiTt :! 

___ ' j I' Nouanolul voyoua (Jru’un iuconvdniout:j 

i 'c’cst (mb Braasour, uo pouvant plus pro-, . 
LB OAZ UT LA LUMlfcnB &LBCTMQUK toxtor qUO Btt lalUDO fll 0 , BOM fort CU pOlQO i 

si lmilB *. ‘ I Uo ftlisaor 8 es bdutona dans la ^a 5 >toac. 

i *, "J.^Mons des plitlosophcs. Pexnosi-! v - 

Si linnet AHnno',i« e „mu. . .. .- do aUssor 8 C 3 bdutona dans la 6 aghotu 

lis^aiissh^ ® 

rSnnii.^ < l. comn .' 0 l® ur Itiour mourunto duns P mSw 0 '-?^' E0TEI ° appabatos at 
nol™ ,<ies M6ea. A c6W to ™? IS IXE0TBI0AL exhibition in 

feT^^sftnsA* 5 Sfr~_ ....... 


aaSSSsSiSS "“•■ •“-««- 

$E£Efes£ffife Ob IrfK 

luiArae chose nuond I U K§s!il° I X I 


usi BBS'S 3 ' ■ 




iipSIwli ISP'® 
fipSHSlS-; S|^«|P;g 

js« KiTSSSrSs- . 

h yeat. .. ; , i“* , »y;.won» p#*** «p<« u, «n,i ti>o cumStin »£. SriSi 

inconvdnion^et^fauiS^n 11 j}.^.* *° us cos “ p “ 



Congress is closed, tlio awards have Leon ‘TTTHKN 'wator is decomposed In a voltameter. 

I J* distributed, tho Exhibition in manifestly YY hydrogen is given oif at tbo negativo 
|drawmfr to its end, although tho exact date of and oxygon ut tho positive polo. If wo now* 
[S^roYooVbiken by tl C ™ * ol,owlDff doc, * ,onM J* 110 owo ^ Uio^battcry with which wo liavo been 
®*TI'° conihooter*gramtuo second system plutca of tho voltameter with a galvunomoter,. 
^2 *Ti lot/tw'%??!?} * or j °i c °tri«ii measures. wo shall obsorvo a current flowing In tho oppo- 
wil11,0 represented by n column of battery. Thus wo obtain a short secondary 
S^Piiv ,V n - *'» section, at tho tempera- ; current, during which tho gases in tho voltamo- 

iffJ 0( Mitr a 0 . ^k& £"J£? 

Sajd by tbo comlitjotiH that In tho ouiront ol ono Till., howoror.'tioea not conntltiitn ,? • 

a*£°-Ms!r b p “ r “'™ uJ p “ s i "° M “ lon sffiffl. £ss^dif^a 
f U w"iS&tal llLT noftnoHSH'^ S^t>r\ 

I -}| ^ nVo JoonfX^tlS 

■ | Sfi&iSlIIoI, ri-fSES^SS 

I J fordetennining oloctHonl^nni^.; w-.?'”? "" ,n,en '? current 

n fii Of tOrrestrial currents: for tho «tudvofSn I™. 1 ? U « » largo number of hie I 

1 ' ^ *^riculclcetrici!y; of lightning-colu^otors* aro l innt H ha " mudo n ro *7 

I :% Mftnph tiuil Iolopho?io. wires a «mtco’ «l ~~ ^ rU ^ to ^ 

I .'I JSiss-r 

bo tikon by otioh Ciovorn-1 layer whloh woul.l 
■»uro tho inviolabibty of |jform by^itnolf. !■’, 

.1 boon oxperiraontod with Tiio^mnlfoyUnilrio 
l .! u n , 0 tf"-'“ t .*V‘ lr - !■ Horn, in dininote. 
ini Bru m- mp “> ,ed «i«t ono kiioi/nimmo 
S, 1 ;.®' looBth. Tlio, aeon 
about 0 kilometre.. Tbo trough., oucli rout, 
tiy by go. anil partly by lend pointed with 

;V 55 i|S g-?~ sb sa js 


°o whiPi°s : Zcu£t£^ 

“bo ckofrTo liubt 0 obargra 10 aecumuia- 

||aii^!f h ^ ord;rto0lJr ^ “wfftowaro 

;i^ lI, T d v ai / 00 ia i , . f I,ono,,r to tlio British Post- 
Jloffloo. Diploma of honour: Sociotv of Tdiummi. 

sowing-maohiucs, saws, pu 
1 evening they light up part 
descent lamps thus distribute 

fraph Coiutructlou and Mainteuanco Com-J No.” 7, TdepSSS room ” r 

o’mp 4 ‘; 3 E n SE£S| ‘'I'bfco ot Lmukro "* 'tiooioty yt .'; % \ 

‘ mSS ? 011 Brothors, In<Unntbbor {“ r ‘ 1, “ ,“>»vo information to 

iSSCT.vSr ■ 

O, DotaHlo. |S”5^£^'£s^. '• 

El Omti'ftfo E^- 16 * 111 ! 0 '™™- 

_ j ilar™ *Tynumo ™“““f 

- - --- - --J oltogotbor colip,o any kiud ?f baUcry” 1 ' 0 ' 

1 0. Dotnille,. 

6 da,' Sctlombre 1881 


American ElectMc Light Companies at then 
■Paris: Exposition.-^’ tho United States, the only 
known oloctrie light is that of Edison. Experience 

2 --—----j prised to hoar by i 

Exposition do cloctricidad being manipulated 
companies, baa bcor 

I known oloctrie light is that of Edison. Exporioneo 
teaches thnt tlio other electric lights aro gonoraHy pro- 
-J duced by tlio illegal amiptation of some of that illustri- 
bus inventor’s processed. Nobody has theroforo been sur- 

--I prised to hoar by eaWo that'tho Maxim system, now 

]„£' j being manipulated aV now by some oloctrie financial 

! companies, hns beon made the subject of judicial pro- 
i os la sain iMM/inri firti mi . , , . ! cess at the PnriB Exposition. It was really amusing, 

) rojulladoj las ornoaldonos dan during the last week, to observe the attempts mado by 
do las cicadas, dclas'lctrasy las artcs’i tlio companies, operating: the Mnximproccss to mislead . 
o ol panto dociln do la mods y d!ilos< P." bbo °P in ! on “ *° <t' e fn? vo “gn'Hcanco of tlho jmili- 
n. J cial dccroo issued by,tho French courts. The Amori- 

iao os dodr quo Ins oxposicioncs pari- nuns know how difficult it is to obtain an injunction 
so distinguon do las domUs por las cir- from a French judge, yvliich, in tlio case of the attach- 
cias do comodidady buon gusto quo las- ment levied against thi Maxim process, is based solely. 
nnn._ La quo so abro hoy on ol Pala-j upon n law of 1844, declaring that any patent may ho 
08 , ® u, ° mas oportuna, annuled when tho .(foot of tlio invention by tho 
?lobro do S?| 8 , nn ° 3 ,i a . l ? abldo vor -| patontco is eontested.fjNow, in tho United States, tho 
1 foIicosoliuRismm nnJ dC r X’u° r °' Maxim system hns hardly any standing whatever, so 
XX olstXdolin’Elo^Wd^" “““r that not a single electric lamp operated under that 
ddo ol del vapor! d,COm0d process, which is i?etply a bungling adaptation of 

paratos quo ost4n on monor numoro on Edison’s method, hnS. ever beon sold. Tho American f 
no do la Industria, porquo sus aplica- P uo l )lu have no faith' id any other olcctric lighting sys- . 
ion osoasas .lodavia, rosorvados coal & tom than that of Edison, and that is the only ono I 
dlos elrfsicos, son los quo so rufioron t which they, as praotiejd business men, seem inclined 
•ioidnd ostiitica. to employ for thoir/ovyn use. Almost all tho stores in 

i haco nlgunos anos so ban croado on tho commercial quarter of Now York liavo mado 

os paisos nidqiiinas quo roomplaian cou arrangements , for 'using Edison’s electric light, and 

“"'"T"!? Kumedon, do platillo do, conducting wires hsyo:bccn placed in eleven hundred . 

,aunl& I oloctr cidad p 0 - ; bui i ding8 In tho lqjyur part of tho city. The Now ■ 
q’uinas nilovas las do hX b 1 n?lla -' Yorkera have witnessed this week another illustration 
las dos oloctri'eidados, poiffiyH no°g“-' of tl,e impracticability of tho other systems, when, for 
chispas considorablos. h the sixth tune biuco January last, a part of Broadway, 

nos on ol gran porvonirdo la oloclrlcl- their main streot, which is lighted by some other pro- 
Uica. Croomos quo on olla so oncuon- cess than that of Edison, was suddenly plunged into 
luoiondo probloraas tonazmonto porso- total darkness, because tho apparatus would not work. ' 

. . ,y- P°f lo tanto, aplaudlmos do voras ol On tho otlior hand, tho Americans aro well aware that 

'duco 0llanl ° nt ° da 108 “parates quo la pro-1 those who, liko Mr.'Flint, President of the United 

v"' , .. .. States Electric Lighting Company, have attempted to 

nlnn n X.Xi i mos ,-‘° n ’ po . rq “ <! nuo8lra °pi--' establish electric light companies, aro not practical 
dos div y ° 31, ? C,0S d0 “loclricid.- people, but moro' speculators, who hoped to make 
olcctric!, cuv J mM fMta!!i n ono6 D var a i!n ' m0l ‘7 b y bu }' in S at - a low P ric '° “ nU maninulntiug tlio 

loscasusT No so arod!™T.wlTi 80 £ ua ; so-called Maxim patent, ornny others winch, according 

conunapilay unatodna doRSlSfi? 0 ’Pora^ to tho Frc,u;Uk 'K> ar ° nuU a,ld voidif tbo fac f of ‘ 10 
OS prqoiso soguir la corrionto y ampler, p!ra original discovery by the patentee is _contestcd. The 
liacorsa comprondor, las donorainacionos gono- total darkness, id winch a portion of New York has 
( ralmonto ndmitidns. - • ® aovoral times b<$en plunged, owing to tho defective 

, ^ 8 . aparatos do-.|p oloctricidad dinfimica ao working of a 8?8tem ,of electric lighting other than 
? n <los c »\ogorias: ol foco do la oloctri- - Edison^, baa fully confirmed tho American people in 
o 6 tri ' - atl0 “Pficaoion do la fuorza their opinion ot the excellence of the system of tho 

> <*L> do ^oloctricidad ora oo.os una- gW “° 8t h,V0,,tOr ’° f ^ #8 °- ■ -.. ^ 

quiiia J 3I ° y 103 oxoluilvamonte una mf- 1 
' s W cl ri«-i«» conocida dosdo haco- * 

■"o u o“ trs; i !£ i r r 

una 1 eorrlonlo/oldctrica, ofooto do una roaS 

noney by buying at a low prico and manipulating tlio 
io-cnlled Maxim patent, ornny others which, according 
:o tlio French law, aro null and void if tho fact of tho 
iriginal discovery by the patentee iB contested. Tho 

Aiilnorabre dp,jours. —~L'ordrobst d’nutant' 
! P' im ndcessaire, du reate, dans lo css prd- 

[' "- •>"“ °. l ' L sent,queTexpositionrenferme,enddflnlllvo.i 

' ■ inviiAniminit '1 une fottio do choses qui no so raltachcul 4! 

L EX10X1T10N D ELECTRICITY l’dtude do l'dlcctrlcild quo do trba loin oti 

AU PALAIS DE L’INDUSTKIE ' aVeC Un6 for '° do8 ° d ° bonne volomiS - ~ 11 

j .. _ y a 14 des dchantlllonsdo mdtauxsoustoulea 

l" aiiticle. los formes, en fils et en barres rondcs el 

— plates. — On y nper^oii des courroies, des| 

L'Exposilion d'dlectricild cst la grande ral,|ierB de d «nlisies, des plumes mdtalli-i 
. oclualitd du moment; cl I’on pcut enlin y cir- qile8 > do I'outlllogo. des tnrauds, drs photo*' 
' culc'r sans se butler 4 cheque instant contra 8 ro P hies - des “rinettes, des pompcs. — 

' des calsses dvintrdes et sans recevoir trap MauvaisB affaire, done, que de se promonerl 
demadriers sur la tetc. — Alois les per-' au milieu de cela, sans programme et sans 
sonnes qui sontalldes la visiter s’ysontcer- bl11, Errou,: encore de croire quo parce que' 
‘ fainement rendues trop t6t, car lo grand in- !’ on a ache,d le ealaloguo gdndral olilciei 
tirdl d’une exposition, e'est la comparison! (coflt vingt sous) on sera Iris ferrdsurlal 

des divers systbmas qui sorvont 4 oblenir un! m,;illcur0 conduile 4 lenir. Co n'eal pas de[ 

mdmo rdsultat Industrial; et lelsysnlmelj 0 , ut erlaqu'll s'agll. 

_dont I’instnllallon cst en retard peut dtro p 0 premlbre chose quo doivefalrn, 4 noire) 
- ' -!-*~aQui i’un des plus mdrilanta. Les vi- a Y l8 ; I'ingdnieur (ou meme le simple citoyen) I 

slloura trop pressdsno lovoient pas. — Ceci q , ui vcut v !» itor . ('exposition d’dlectricild,! 
soil dit, du reste, sans inslnuer le moins du! c csl d'acqudrir, sur la science des dleclri- 
monde que le fait d'dtre en retard fmpl/que 1 ciens * ff“elques connaissances gdndrales el : 

rel 8 „m 6n0r ^ q ' jclc0nq,,a en fd'-eur de d'etre asses frond de ces connaissances pour 
ceux qui poasftdent cette ficliouso habitude.! eomprendre ce qu’ll voit el saisir les exoli-i 

• disne d’un nranH P ° U 1; arriVer ( l uo '-on soil' co,,ons <1™ 1“ cxpoaan'iB no d.manderont 
aigne d un grand sucebs commo conslrucicur P as nneul1 que de lui donner. 

„ sant n r!;!nr!t U I' , al0rSn " !mequo ’ cum '' le e *P°- u Point n ' el,, besB 'n pour cela de ddpenserl 
Sf'rvbro 1^"%°" mMU> b,ame ad -; beau “ u P dB '™P a nl tie fairede longues et' 

lions'trnn N ,A d0nc p ° 5 voir lcs ex Pusi-! P dalb ea d,udBS - — II suffitdo lire 1'ouvrage 

■ *•»— a*, to A M ’..', 

SSiriS ztfsS&SSsr 

rr. “ —»rZsss 

l - rrn , | l|| t | | | ? *• eans nous prdoccuper, outre me- I 

’SsSSoiM^Ts^to^B^i^i;' 00 Piusienrsaflpeches dlfffirentes. Sup* 

M- -■■-•■•.".•„."S§^t^.i'iPoaopa one rove dlstrlbutrlce qul, pon- 

f'>, • 'OSffVfSlSIElliEXws ,aant 1/6 dotour.llvra ft un dos employds 
^--vr..v passage Bur la ligne. Averll par un si*. 

EXPOSITION INTERN,tTIOlMir ]! ant’co temps trds c^rart, des comfifnal- 

n'ti cptd./oyR sons spdoiales de cournnt formant des 

D ELECTRICITE lottres. Pendant lea cinq autros six id- 

- raes, il anra le temps de composer uno 

lis TiLioiurims.ocuiiur.E Alhctiuque nouvolle sdrie de slgaaux, pendant que 
svstSub bdison ses cinq camarades proflteront chacun It 

Latdldgraphleestunedes preraiAros son tour du moment opportun. 
applications pratiques de l’diectricitd ot 0n p , e , ut , T ?lL coml ? 0 Ji? (5cimona ? oces 
rune, des connuosde tons nos lee- 

■D6s 1810. Soommering et Schilling M ? rae ) fltle Wldgrephe Baudot, qul im- 
cherchArent A appllquer les courants P r l ! i la en caractdres d imprimerio. 

! galvanlques Ala transmission dela non- H exposition franoalse contiont onco- 
sde, et cost depuis cette dpoque que ies r .° de ? a PP araila rapldcs Wheatstone, 
travaux de Wheatstone, en Angleterre dans ,0S( l uel8 1 omplol d’une bands per* 

I ontpermis d’arriver praliquement A la 5?™ 8 k l’avance, ot do courants alterna- 
solution de la quostion. 4 tivement positifs et ndgatifs, permot 

I Leminlstdredespostes et tdldgranhes d oxpddier en slgnaux Morse jusqu’A 
franpais a rduni dans un pavilion spd- C 0 P, t soixante-dlx mots par minuto. 
eial, toujours trds ontourd, tous les spd- , Uot apparoll Wheatstone so rotrouvo 
’ atmona connus des appareilstdldgraphi- ? ans 1 exposition anglaiso sous de nom- 
ques depuls 1'lntroduction en France, on h , r0llsea formes. II est, pour ainsl diro, 
t»«, jusquaujourd’hui. classiquo en Angletorre et prosquo gd- 

. ba 5, 8 . rem ° nte r a «x essais histoiiques, ndralemont lo seul on service, 
tea teidgraphes employds couramment ’ 1,08 expositions des autres puissancos 
se rdduisent k trols types : . montront des typos plus ou moinsmodi* 

j gca P he “rdguet, k lettros «M dos-appareiis que nous venons do 
fuelttfs ot dont passorrapidomont on rovue, et 11 nous 
1 W? 1 ‘ffiw^intauxpotitsbureauxj } aut alter jusqu’aux Etats-Unls pour 
sur une baWs°le& affirm taffiie? 8 appar ° lls n0UVea,u parleupi 


i| 3 ? 4 =S£S.|=iSI 3 frS.=. 

#.hS=Ss5ks SSeSpa® 

lijSgsealS gB^i 

coin'avail ddployd une puissance prodl- p, s.~— M. deKahath.'fondd do poui 
gieuse. . yj , • . .voirsdescompaghlesffafisd Slates Elec* 

•Examlnons son dclairago. co vaste <r ,- 0 Lighting C- It Weston Electric Link. 
systdmej si Incdnieusemont, combind, a ng c*. nous informe que, par 
depuis la sortie He l’dlectrlcltd du gdnd, nriaufflsance momentando de la force 
ratour jusqu a sa consommatlon dans la motrice fournie par lo syndicat, l’dclai* 

ra S° de Ia salle d'honnour il l'aide des . 
d ,® I a , ' lampes A Incandescence sysldmo Maxim 

quo des appartements serait imnossible 

sans les dispositions pratlques_ des con- r, . -,'JOTJRNAIi I DE8 lifcBAia ] 

ducteurs, aussiblen sous Ie pavd dos •fjfetiD! ' ' 

rues quo sous les tenturos les plus ^ 

somplueusos ou le long des cloisons les jOTQSmONI lOTEItNATI05IALE'DE L'toCTRIClrt 
plusmodestes de nos domeures. Sanfll“ raLi>J > .': '• ’■> ■ •; .•••• . ' 

cetto organisation si remarquable, qul T^« n ?“ 5 oaaipewp. ,bienldt;d'dtudipr 
rend l’applicatlon de l’dclairage dlectrl- d .»“• ™»nl‘ro coinpietu loutealesddcouvertei 
quo ausst facile, aussi pratique que I’d- fgPfflgJL W J 01 fi»| r : cl “ '« 
clalrage A l’hufle ot au gas. la tempo : *2 fiF*- ‘ W'S^ v I P ai ? ^ u ®' ®* 
KdiBon resterait une Invention d’un in- : v6 .’i lodB paa 4 parior de ces .pplt- 
tdrflt purement scientlflque. ■ Km 11 , 0 ? 8 “ 8rv elUeuies ' de l’ilectrlciw A 

Il fallait un esprit accoutumd aux tra. iSSStaSK,ar’ieKTem' 
yaux da touto nature pour pourvoir ' v« a Ld!i S ‘< lRmpc ? 

a on 8 Lage S Jans™ous^Ies S mi!?eux B8Urant f p 1 111 UStr8 

dison a a ( ^rdaHsd° D mir tous P Ief r syst?meB l^4s“ 8 ^ d ^ a p to *” C de^°Sl^t P1 «MSin. a », 
d’dclairago usitds aujourd’hui, la fumde, gj? 

I So’ZfA 1 ™ 1 nf P t n n/n‘d 0 „ n H^. rnft 9 °? /l5 i « Dolr1 a m™de d“n??nveatIoa nouvelle 
? m ji™ Sh nn mn • aomble fltre vr.lmdnt la iplus bello action 
?ooh’ni2nr ft In nm a?n;m < «K2 ,t *.2 0 2S kqu’uahommoipuiaae accompUr..Toutenou- 
dQ Chaleur Qt 10 0/0 do luinidldi on 6Bt * Vplls •invontlnn nmiL rinvflnlr un hlnnfnif 

! auiorirt A assurer A l’invention du phy. 

fimfddwnlniJSfmonf r C un rap de ot 0D “ • lea couvres de la.politique, ne.fdht .de.^leu 
, tiei ddveloppement. I • <m , a&xind^vUu8de , auelqttdspi»i;'lA’dut 

M. Edison expose dans la salle 34 les y 5L do’coflea-cl^ no d/nSse nu'dueibuee 
I hirros rn 0 ndnM?lf n l q m h n Ue “ nal ! sall , 0 , n : i » sldcles, lee autres sonFfeneSes. ’lcb’I n- 
s barres conductrlcos, boltes de jonctlon i , venUona font to bonheur de toue: sans cau- 
pour les rues et les maisons; branche- i^ f de polne ou nulm k qut quo ie eoit . 

; ! SLuneinveuUommdrite qu'on Jul eppltquS 

teurs, etc. Ajoutons qu'on est en train ce8 patolegj.B’eat bleu celle du aavanrAmfi- 
[ T^,?°a S l?° 008 a ^ a . r . elI f & |dcam, car olio eoulo priSsente d^ne toutei bos 

i New Yorh.Tous sont pourvus d attaches parakeet admirable caractftre d’unltd. d’en- 
de sftretd en plomb qul dcartent tout ifembie qul P per Jt dTrdlllser lmmedldte- 
danger d mcendie, par cetto raison que ment un Krand proKr68auProfit(l'u‘«ljbi^- 
cos attaches fondraient, si la tempdra* W-:*?**^ 

turo des ills venait A s’olovor sous l’ac* , D’autres 1 latnpcs h* ih(ia i ndeECch'cb,■,ii}g6^ 
lion du courant niiuBCment' Combin^oaV 1 abiit’fesfposfibB 'danB 

Cetteraesure prdsorvatncoa dtd cons* ides* BaUds'ivolalhe^^ 
tatdo par uno commisBion scientiflque, mils aueun^ne donna Ba lutniera donbo ejt 
dans un Gxamon minutieux auquoi olio ipure,.Ba clartid flxe, ot n^estTattachdo ^ au^i 
s’est llvrde A la suite d'un ipcendio qui ;cun,syat(imo d’iqatallaUoa:v4rttablcmonVpra- 
a delate dans une des salles de l’expo- : tlquq j-; 

sltlon dolalrde par dos lampes A Incan- j i)Uous : lb,.dans iTawffit.dp IkyMid, 'dlli 
descence d’un. autre exposant. Iprogrbs, du blon-Mro giiabraT, tij’Bystbme - do 1 

. Ainsl que nous le dfsoilB plus liaut, 'U; Edison cbnstitue uno cbmplble rfivdlulldn' 
tous ces details rduriis donnentau sys- dsns l’eclairago'dom^tlqutffTl 1 eat^dppel«A ; 
teme Bdison un caractAre absolu d’unltd Irdmplaceb^done •un 'teiiips ' tris rapjprochtt 
et dhomogdndltd. to'uiiTo'ssystbmM«uius«^i;f •rrri'.th i -i!i ! 

Nous avons lieud’espdrer levoirbienl ,itr<atililuue oiflnlbnqul peubntoavd’abord 
tot applique A'lfariscomme A New York, iparaltro oicesalvciioui;ipofiranneB qul n’ont 
Un syndicat des banqulers les plus puis- pas qMmiuA , los , apparollsi dVctalrage de 
sants et les plus honorablomont connus M„Edt8on. On so dfiBe. parhabliudo, dps cbo- • 
do la capitale s’est rendu ddjA couces- sof nouveUoa ; c’ost uno cxcindnto prdcaui 
slonnalrodqsystAme Bdison pour Pa- 'tlonqudnousprofessonspqut-efrd'ATVxcAsori 
ris. , 'PrancbV'CppendtifltT'qua'ndT’aVw'AncbdcsfaltA 

Nous oroyonssavolrque loprixdela s’lmpose.lTiiht dd tbatdi|(istf4e' 'dB la'ieconL 
lumiArp olectriquo fournie par cette nou< naUtei e’est'mAmeutt-'platelr'qibur'toutosprlt: 
- velle doclote-nedApasserapas celui du son8«,:surtouiquaiia ittvoteliiteqt d«JAitrac6o 
gaz. ' '. par dos gens don t'la iolcnce o t in competence 

. . H. liavllle. dans lea mattbres conmisesr'A ’ion Jpgoment 

—: ne^flfenM.. d toeuttefcirt jaAiki.ii,. : v;. * j'V 


SOUIOTSan'.^ance ffarisYo'moddo'MTant-' nar] * depuls lour installation, et lalumUm Eft}: 

souiovo enhance dans' lo mondo'sarant ; nit U ' I,U1S 18ur insiauauon, et la lumiero Edl-> 
14 hoiiyelto dcUk ddcouverto do'son sjisl&ma' * ““ *wio|tt iun prhtlnferlcur 4 crfui 
d’actUrage; II ddtermlhad’aliotd-un mount’• ?“{*?*•?' •^ ' . ' " ;l ’”'! •' 
ment d’CnthousIasraej blontftt apalse'bar les La lumioro dleclrlquo eit employdo ddjli 
critiques do Havana >autorlsds::rL?uli ^nolain- dens ldndustrlo. Ajoutons -qu’4 Now-Yortf 
ment, Mi dn Moncel, l'emlnent.plmiclen kb el ‘® s’lntrodult avec uno raplditd etonnantd 
montral'advoraairo du;8yst6/ne'Edlson.?Daus comme <Sclalra B‘ i doniostlquo. Elio’ pdnfilrq 
un article qul At graflduisentation , dans’ j„ 1 “«? J«ulement-o4 Ta lo gas, male oil II- n’sT 

Montel, l'Ocdan dlendalison ImmeusitO. Mala' Da ?“,' iuc !? u<1 |?n>ps dnae ratfpellera ImIuj 
malntenant quo le aystOmo do M. 1 Edison a c ° uv<,n J ena do celtc-cl cormnoonsa rappello led 
passd la mer, M. du Moricel a mfttUfld sea od- ca,10,sdea dlllKoacos; t»nidtlabouglo do miu- 
prSClMlons; ear dans uno lottu dont on v? 1B0<Iua,l " S ron dant et'rulasolantaur leslia-i 
nous donna ’.communication, lUfiouhalie. la?. ^““dentolltaitcntotlesbaguesdecris- 
i blenvenue oa cos termos au nouifel arrivant; *“ atant 8Ur lcs dpsulos des dansouaos: 
.aprCs avoir dnumdrd lea'djWfemik ‘eccalo 9 do taaW ‘'ftnn incondle; la feu pronant 

?' fl, ®“ rrt * , iWl;,pdurn4 : pasdlroplns,'otqn , nS 1 |; Hien do tout.cola, 
<» on 1879, on anrionga la' nouvello lamps 4i E1I ° brlllo, discrete 
» charbon incandcscont.'de H. Edison, beau- son globe, ddgagoan 
» coup do savans et mol-mdmo on partlcullcr , la main la plus dalle 
» doutOront do. l'eiactltudo des allegations Pressor sans cralnt 
• qul nous venaient d'AmOrique.. Co for il laQ tes. 

» cheyal do papier carbonise paraissalt Inca- Ouand nous dlsons 
' pable do resistor A des chocs mecanlqu&a #8t '.*n vole d’opercr 
' ot do supporter longtemps l'aetlon do l'lnv dans nos habitudes 

la mAcho fuma'nto. - 
i lumldro Edison, 
ro, onformeo dans 

wtttttt t sacondairos. Clinauo lampo pout Otro'con- 

■ jyjj TJSMPQ siddrdo comnio uno itorntpro ar(6ra attacliOo b. 

J unoart&ro tcrtiairo; ainsinous avonsd’, 
lo grand courant, puis uno sdrio do cot 
dSrivds socondairos. 

II y a quolquo danger, parait-il, doprovoquor' 
dans un point quolconquo do cos commits un 

^coup, par 
i pour quel 


W§fe. ; • . . . ''conslsto c 

i Lo Temps, dans' soi 
d6ji. lonquomojrf par 
liaison. On pout dire q 

; ^.Position ■ do ktUoUlopt^l,. 

^ "no vi’yo imjiationco partout lo'mondo sciontf a*l^i! 1 iAn < ? a ”/ l i 0 ’-i 0t lon vout ’ c ^ a Quo'lampo 
iflquo; olio n'a point ^appoint^es adS io !’ no 1 ’ rC ^ llto , * ,ln tout petit fcouton on 

tours do I habilo physicien des lilats-Unis- ollo'rinf SI!' e ? t - 01 ! 1lour<s do doux fils formant cou- 




g^pig^S|g 5 ;!.:a?£SSS : 

■^cottp, par sm|o do nombrouscs extinctions ou 
pour quolquo autre cause, l'intonsitd iSlcctriquo' 
x pourrait croiiro Iris rapidomont dans uno par- 
\, to du circuit: co dangor est prfivu: cliaauo ar- 
fta'O osl munio d'lin apparoil do suroto, qui 
consisto on uno plaqno ou tigo do plomb quo lo 
courant ost oblige do travorsor. Si la tompdra- 
turo dovonait trop Clov6o, co plomb fondrait ct y aAcctofrot, 
dans la ruq, sur la grando artHro, des boitos 
carrdes accossibles, on fonto, dans 
losquollos s’ongagcnt douxoxtrdmilds do tuyau 
do la grando canalisation; entrocosdoux oxtrfi- 
mites, on place l’apparoil do sflrold; do mOmoA 
icliaquq btanchomout do maison, il y a lino no- 
■tito boito qui ronformo un III do plomb; onfln 
;cnaquo chambro, ot si l’on vout, cliaquo lampo 


baso ct travorso par los doux mincos tils qui trouvo amst P™duUo, ona uno oxpirosion 
nnv-inAmns nortont la frPlo lurno do cliarbon do lcnorgio do la lampo, cost.idtco uo 
qui sort do source luminouso^quaml passo lo la^ijuantUd^do^forco quoflo consomme dans 

uio.“ot'M d0 It.5tcb r o , lor f-lntoHigonroT si“com- dottte aiimontdos par' imo'mOmo machino 
plaisant JoprSoula.U ho M.°B AJoxposi- magnclo-Olcctriquo, on pout trouVjrta force 

(ion m’a dit ou’on fait oncoro do cos fils do pa-qu’il cst noccssauo do fauo proauirt a coup 

nior pour cortains obiota particulars. La fabri- machine; ct, si lo rapport exactdo 
cation couranto so fait tftutofois avcc.dos forco motrico qm met on moinement a na- 
ompruutCos an liamt/ou, qu’on importo du Ja-|chinei elc<dio-moU«ce clait• oonmi, on auia t la 
non, On iicul voir d.'ans un tableau Bl'Ccial los quanlilfi do cliarauviapcur nu il faut assurci 
Stats succossifs do cos flbros du bambou. I pour alimontei un eclauago donnC. . 

Jo n’ai pas laisso quo d’fltro surpris on appro- 11 ost A poino ndcossairo quo jo diso lot quo 
nant do M. Ilatcholor qu’on ctait arriv'd A fairo dans la seno d operations quo jo vions d uidi- 
cos globes do lampo si dfilicats, avee lour vido quor, il y a cn quolquo sorto dos dotroits assez 
parfait ot lour (11 do bambou, pour la modiquo' difficilcs A taavorser. Iin premier liou. lo mc- 
sommodo 33contsamdrlcnins(environ33sous), surour d’oncrgio do M. hdison, co petit cyun- 
Uno lampo duro, parait-il, onviron six inois. dro oil la-lampo Ocnauflo do loau, mo parau 
Lo vido s’y maintiont jusqu'au bout, mais lo un apparoil un pou dldmontairo, qui nosaurait 
passago du courant agit sur la structuro du (loilnordes rdsultats tres comparable ni tres; 
cliarbon, il s’y produil uno sorto do cnstallisa- precis. Ensuito, il y a la quosuon dos pertos 
tion, laquollo no peut pas so fairo sans des dlo : n’onorgio dans la canalisation, la question deq 
vages, ot co sont sans douto cos dlovagos qur raDp01 ”ta d’dnergio- do la machine Clectro-mo- 
ddtorminont la rupturo flnalo. Quand lo nl ^ 00 ! do la machino A vapour, 
ost rompu, la lampo doit naturcllomont Ctfc m. Edison sont trOs bien ccs.dUflcuHtis; aussi 
changdo. . , „ _eompto-t-oa fairo. uno osperigneo pratiquo on 

Dans la fabriquo do lampos do M. Edison, on Kra nd : produiro uno certain,6 quantitd do che- 
Amcriquo, on on fabriquo courammont <J,000 ^aux-vapour ot constator combien, avccs l’ou- 
par jour. La lampo typo d’Edison donno autant jiu a g 0 oiectriquo actuol,, la canalisation ac- 
do lumioro quo 10 bougios; c cst 1A uno lumiero j U0 n 0 on pcu t alimentor do lampes. 11 ost clair 
trbs forlo, pout-Otro un pou plus torto quo co nuo l’oxpfiricnco, mOmc faito.ainsi, no prouvora 
qui conviont pour nous, car nous sommes plus a ,iolauo choso quo pour un etat particulicr do 
liabitud on Europo otsurlout on branco A avoir j‘ a c J ua iis a t( 0 n; mais on y trouvora des don- 

m Europo otsurlout on Frant 

ngrandnombro do potitos tumicros taiutos bionintci'ossantcs pour des Otals do ca 
u’un petit nombro dolumibros fortes. ’ UsaUon qui no.soraiont.pas Itor dilKrcnts. 
Lo pnotomiitro cst tout coqu il y a do plussim ; ( ompoiu voir dans i’oxnosUiqn do Mv.Edis 

Lo pjiotomfitro cst tout tm qu il y. a do plus sim- ( Oil: pou t voir dans I’cxposition do Mv, Edison, 
plo; llguroz-vous uno sorto do potito galorto qui nlanxl'onsombLo pour l’illumination. Clcctri- 
ost Cclairfio A un bout par uno bouglp, 1 autre 0 1 d , un „ raad q! ,ariior dp Novv-Vorh, qui cst< 
par uno lampo Edison; dans la galoiio pout j Ur dcux 3 0S <;s cites limits par Wail-stroeti la 
roulorun potit cliariot sur n ''“ [iKo norizoiiUilo, rando av turo commorcialo, ct par lo quai du, 
qui est gradufio; co chariot porto uno carlo on .g . fait . faco a u. port. Co grand quaflrila- 
papior avoc uno tacho d’huilo au miliou, cotto '?xj a ’n 0 n gi rO aim kilomciro carrd; co n’ost pAs, 

Quand los doux lumigros sou aiTivces par ^ onviron du quadrilatfirc qui 

lo mQuvcmont du chariot, A_ Cclaucr los doux -. lordo pQxt^.^iii.nigridionalo do 'Wall-street, 
faces du papior woo la inOmo intonsit^ los; jj?f^ adra installer la station ceutralo dcsUufio 
deux images disparaissaiont sur tos aoux .. v 0 ,,„ av onsvu. 

tonds blancs, qui aont 1 ‘^ a r f n no I H q 0 t ‘nnro C rfilaUvo Plots do cotto station : olio comporio. 12 inachi- • 
papier. On mesuro alors \o. d f .a^o lo 'aUyo p™ r etl2 machiae3 ‘gioctro-mglrices, 

des doux lumibros ot. do la fou'llo (to paptoi, . , i ;. machinos A vapour. On 

ou plutOt co v ^fiX ^i d ufiole n°om^ au ra ainsi ou tout-uno forco motrice do 1,000: 

I on n a qu A Urq sur 16ohcUg^Krartybo lq nom c jj 0Vaux _ va p 0ur; ma j S u n0 faut pas croiro quo 
bro coricspondant A la position d“P a Plwsou- lcg marehont'on.mfimo tomps. • 

mis aux doux co chiirro donno ■ c’ost prgcWgment parca quo los bosoins in¬ 

to nombro do bougies dquivalont A ia lampo. dustriols il’un ,tol quartior sont. tres variables 
on oxponpnco. , nuo l’on a subdivise la forco motrico oil 12; la. 

nin e ^ r i a Pl^ Wnn < MnFr'nim n mr?a(dm doft dta- station contralo doit, fitro considergo ou offot 

VIV.® ; ??“ 8 ; : am I >0 • ly p0 ’ ^om^et Poiil^^^l^^iont 

. des mpyons do suhstltupr par.tQUt,.aux forcos 'nioiifsqijloflwidrdci&7umt6rormaIs do ia,Orco 
actnollemont; oo.usagO;' la. forcoprovonant do motnco. 

laqlaUon eontralo, . C’ostaflndo produire do la lomi&ro i bon 

Nqus. av.ons d6ji dit;comment so ferait la ca- marchd, quo M. Edison so prdoccupo aussi iEv cotto force: ll nous resto quolquo ajoutor do la forco molrieo; il so flallo naturef 
chose itdiro dos machines mflraes. Ponrlosma-'lomcntdo l’iddo quoplusil pourra produiro do 
chines, it vapour, olios n’ont rjen qui los distill-; forco, moins cello 1 force soracoflteuse Los Dar 
guo, oicoplO lours gfinOratcurs A. vapour,, qui lisansdo la lumiOro nouvolle so disont ausll 
sontd’.un. ipodeio encore inconnu on. 1 Europe/ quo, Out mfime collo luSo cofllor plus ouo 
On pout on voir un specimen au rcz-do-chaus-' collo du.gas, olio flnira par oblonlr iHX 0 ' 
sOedol’ExposUiQn.;,MV Batchelor nous aafflrmo-ronco, parco qu’olloa P taavaniJm. S' 

quologeneratourquisocaracteriso nardes cubes lionrs, parco quo los youx uno fofs habiiuOM^ 

foyerostcoluiquiproduitlavapouranmoUtour'2H. 1 lo ^ oa J-, lls no voudront.plusqu’onlos ra-l 
marohO, parjni tousfos,gOnfiratours commaauvi m VP° au regime d line autre fumiero. 

Etats-XJms, ct.naturollement; I’attontion do M * P? apouBs6 si loin 1 organisation du noave! 
Edison a dfl so porter- vors la production laplus 1 ^candescence qu on a ddjh chor-, 

dconomique possible do la forqo puisnu’il s’a- ? bqe t honvOun compteur pour Ovaluor oxac-’ 
gissait pour lui, non-soulomont do produiro do ih!I, e ?im?;i CO " SO " ,I ? ? ‘ on ' Lo P r, “ c jP c 011 cst '.lea I 
la lumiOro divisdo, mais do la produiro il atissi ^ ua slmp l C3 ; oa cierivo un e mimino fractiou 
pou do frais quo possible! 10 Japr0UUJI ° *' !U,SSI gu courant, o’ostoxacloment oa cinq 1 
'"La machino eloclro-magndiinuo ost fort sim- danq 0 ® 0ln pteur Edison,et on lui fait- executor 
plo: entrolcsdcoxnolcs dol’aimantfonncesnai' d’unm-lain'f'nm li ^ ^ ^ an v aa bqut l 

aeux coionnos vemcales, so irouvo lo cYliiidro “‘ton. temps lettepolgiu a dltl obtain, on 
OiVnajssent les couranls indiiils. L’armatiiroa d ^'ectticite.a OtC dopnusdo. 1 

cola do particulior qu’elle ost fopmeo par dcs. ^'T dqnn0 0,1 eclaira- 

tiges carrees do cuivre, placiiqs dans In direc- IS 00 * a5 ,? trast ° I? ar , aa douceur, on pourrait 
{"}“ < * 08 ’ «*»<» da oylindrOtparallOlomont les EM? himK^.^ W ^m^ , ' av l ec 'v i;0 n aT , ql - 1 ' 
unos aux autres et sepai-eos.par dos plaquottes Sfti>inVin l L>i-n reS />i?i U< , rom J^ | ssont lo Palais 
lGa ’ ^ ea sou dM r Qa ioj.lc3 l anx oxltanntes do- vAni^ tamfere cst no peuf 
'•fcg^&Ugcs pevmettont au couraut do passer d’uuol ,^ on Y no celloauxquelles. nous- som- 

«\ au iG ’ 1 i ’ isolalio11 dos tiges cst renduo }ftP?n?^S on ^ am65i ? 1 ,CJ1 wyojis- vuP 

^^■)mpletopardcs fouilles mincos do mica ^ ^ P a ? co loW'M&uc qui cHoqiio nolro' 

■ooutinuo 1 monto ot descend, stir les artfos sue- nvfc voudrions pas.parlor do la, lumioro 
Pcessives du oylindro. Collo disposition^' a nour saas a J°“ler qu'il y a u« auti-o syslO-' 
f fl 1 ®! do rendro les vijislancos maximum Lns 1 I'd produit anssi diii of- 

f !, ai f q § IOI | 1 - n "ye»uodol’armaturo, pi-Ocisemont bio 5 fa*, q S. u ®s ct qui qst oxtrdmoim-nt agrea- 
' ^,“ c ^ 5 „ deux P«lw do nudiwlemVS io ]- ='i, a Jo a / n l ,0Swaa ,5 , cla l''el a salloduCongrOs, 
h 2m d ™T“ lo Plusenoi-gique, pr&illnn^.’v v s » • CS- i t r S 16l -P* 10n ® :i . la sallodit 

Sunposons la machino on liiouvoment 1 p<; dc 

} ^ IS - S! ‘ CC3 ?® produisent il la fois dans L'ania-i raisaoifi 0 ^ 80 '! 11 ! 1 ?' 18 ‘i’™' 3011 cl do Swan pa- 
rafcuif ll <?nnin 0 .. 0tdan ? c i rcuit - M. Edison ai'trouvdcV S- kh-iI? ® Heurcusos qiion ait 

nes-tanK les mach 

ndeStfe °cVar 
5 qa «ter io plus n cSS a Sf5 

•otdSta'Ja™ olfiBODlortoutNow-yoikdalbrce' • !••«««*«« Mmm i 

SSwe otrS^imnia in J a 5 Da la Plus^.r qn - B 0 ^ trajfe d'C-ioclricilO slnt nio^ f,^ 

- «!°BlJo, W. Bqcqqmili.,Lcs maiiun^^ 

gnOioosiocfrrqnSff ertt 6lff^piFqne®-par M, A1P) 
toiuo Breguot r• tout co- qut- coucorne la. trons.i I 
mission do rdleclricild, fl s, cablesi paratou-’ 
uorros, a Old dficrit par M; H. ClOrae; 

L’i-loclromC-triocsnB point qui allrro surtout. 
l’atlontiou dit congris; cost, una science qui cst i 
oncoro h S03 ddbuts ot quf n’a pas do mesurcs ( 
definitives;, dausio chapilre aur l'd-lcctroindtrio, ) 
dil 6 M. Raynaud, cliaoitro tics diendu cl tres ! 
bien fait, on tronvera un oxnosd comnlet do 
la question. Tout lo mondo aonlcndn parlord03 
Qhiu, dos Wobcr, dos Farad; co sont la dos • 
denominations.blon pcuscioiUiHqnqs, ellca ont 
on lour valour, olios out cueoro lour ulilito, i 
inais il sorait pmit-clro tomps do irouvor quel- j 
quo chosoqui soil ptusjiitornntional, plus dcfl- 

iiom-s, los electroscopes, los tlicrinoniclres, 
a ualvnnomC’lrcs ct les fralvanonictrcs, Ics 
M&snlcs do tungonics,* 1(3 mullip!icntonr, lo 
aKiuiturnolrc , los olcctvo-dynamomolres, il 
mdcomntodoH divers Gtalonn do rcsialaneo 
; ;»o capacity rhdoastoldo Wheats ion v\ balauoo 
mpont do Wheatstono, galvauombtro univer- 
^Ensidto'v^pn'nont los applications do l’dlocl^ 


Oourirloi- Indnstrlol. 

(Corraimid. parliculUre it L'mpirraDANCB.) 

Paris, f“ soptembro. 

Dans lour vlsllo nnx mervolltcs d'Edlson lesvlsl- 
tours porleot surtout lour attention sur Ics globes 
do verro des lampcs. dans lesqualloa brills uuo lu- 
ml 6 ro douco, dlscrtlo, dont l'dolat cst udmlrablo- 
mont opproprI 6 aux ndccasltda do la vie domcstiijuo. 

I| icmblcrall quo la lampo scale lour pardt rdalisor. 
lfldinicllo prob! 6 mo do I'dclalrage dleclriquo. Collo 

Cit6: M. Blavier s’ostBpOcraloi 

loctvudU des. machines dynauto^ieoiriqii^ ro- o 

qui conslsto non aculement dana sa lampo, mais our- 
loiit dans les dispositions qu’ii cmplolo pour y amo- 
rofl’dleclrlclld. - 

Sans see canalisations Ingdnleuses dos couranls 
dlcclriques parcourant lea rues, so rC-unlseact dans 
des bodes do jonollon pour ao rSparllr dana toules 
les directions on reaiant complbloincnt Indcpondanta 

Nous nous emprossons do signaler Tappan-| 
linn du Drcinior Uaciculo d’un nouvoau IrailL dc 
SoKio<W do M?N. do Lapparont. ingOmqu. 
d« uni a 616 pemdant plusioum aan**s, 

altachd>au aorvico do la carte gdologiquo «[6 
taS (iS Prance. Nous ongageous ^uicur J 


des terrains et do lours subdivisions, avee un 
torminotogio puremont 6trnngfcro; it faut pror 
dro it 1’iitranger certaincs coupes 9 

ro«r&°irtUi^ : 

tOs tfuno manibro comptOto, sauf pcut-6lraoci 

taius terrains, anoionB.dimcilwaOi-iei miner 

causa do lour pauvretd on fosstles. 

I A, VERNIun. , 

I a quol M. E llson a’dst appllquS^ , 

leur action cbmimmo, do lours dispositions raison- 
ndes tonics on parfallo harmonlo qu il rdaullq cet 
dolsiraso morvelltcux connu ddsormala aous lo nom 

d °*Linu>ba 1 < h E lHro n da rontelanomonla dconomlqucs 
quo la chalour ddvoloppdo par la lorapa eat li 6 a 
falblo Elio n’ost qua do to p. c. doldnergludd- 
penl- oV rond OO- p. o. dolnmiCro. U 
coutralro. donna b qualil 6 tgilo d'dnorglo 90 p. o. do 
-s-niwnr ot 10 p. o. do luinlOro. Aussi.tans prdclser 

ou 808 youx; ot, S'll V a ¥ ; f !® ur °. 

W- dV>ut Giro wfayoo l > te< < 

It nte la possibility d’omploycr cetle pyj 

>(, gttftsouvllin hW;Finj%'ij4 t 
I cpmlp5I(!fipbtaiji!e1# li&log/eft auric sort 
OB son mariage.cot hommo, "prudent lut rG- ' 
pondit: « N’ayez craiute, 
* m V[.Wup: ne ; 6orez,.point malhaurcux, si 
• Bleu ,pjalt. : ».Nous,Ton sommes 14.,ami, et 
nous aurons .'bi,eat6t un’accumuIatour mer- 
;,' «i -Dleu plaU.-- En 'Atle'n'atinfi'lia- 

j y aHippff , m 1 ^ 1 j 1 •' ••;-• >• 

; '••'WWf lp.^urfl,; (Tflii/^oy^V'SufvroavQC 
aiwmlpn.> les iitmvatixi' deB v^lectrldierifl i ■>Us 

pail, 11 n« sauralt vpus mener qu’i fa ruine. 

... c * ~;v~'jsTciuai 

Jeudi 15 Septembre 18 81 

L , J. core GIG rdsolu, on 1'Gtat acluel dcs cho- 

exposition d 61ectncit(b 8C8| ollo C8l liern)l8() , U . BM gran , C8 

- duslrles, disposanl d'un emplacement, d'un soirdcs do 1’Exposition sontdeplus mal ' !riel ul d ’ “ n personnel sutllsanls pour 
plus aniindos. Non seulomont lo mondo 3a produolion sur uno grando dchcllc. Los 
rant profile do colto occnsion uniquo d'd- P olilcs lam P |!S , oloctrlqiiea d Edison , do 
Her dt visu los porfoclionnomcnts ap- Swan cl do Maxim sent cllos-mdmes accom- 
rttis par chaque nation dans les muca- P a 8 ,,(ic8 » unc puiasunle ct volumincuse 
irncs photo ou dynamo-dlectriqucs; mais niaclilno; ot, dans toute cctto vnsto expo- 
public sans possddor la scionco pour 8 ^ on > 011 1° gdnio,international do I’adini- 
niprend ro les causes ct souvent aussl los I™' 1 ' 0 “ ci “ nco d ^ouvcrto par Franklin et 
els vralmcnt prodigiciix dont 11 cst Id- fialv,llli •’ 03t llonn '- carndro, aiicim invon- 
Din , sail comparer entro cux les appa- ,ellr > auclln savant n a essayd do produiro 
its exposes ot son jugemont ou sos pro- la lumliir8 8ans >">» ™ 8,1 ‘«o motrice. Nous 
roncos - chose romarquable a 1'dgard nous trompons Seulo, la Soc.dle d’dlectri- 
uno oxliiitilion aussi techni(pio - no c,llS Tommasi (11, ruo do Provenco), dans 

, inmnia ft fuiv 80n navillon do la salle 1G, fait una fo- 

iricni jamais a iau\. marquanle oxccptlou, quo nous croyons lio- 

Co jury populairc, qui apprddo lea olio- V oir signaler t i' aUenlion dc8 | lomm03 
s do la scionco d aprGs les impressions com p<Uonts. Elio a, du reslo, olilonu ddjil 
I’il on reqoit, avail ft so prononcor antra | a f av <>iir do j a grande majoritd dcs visi¬ 
le grando varidle d’ engins destines & t our8j qll | par j a col nparaison do co sy- 

oduiro la lumidro. stdmo absolument uniquo avoc les autros, 

Eli bion, nous rcconnaissons quo parmt constate uno originalilG, s’ informc, puis 
s magniflques lampos dloolriquos dont la : flnit par a( imiror. 

arid, tour a tour dbloulssanto ct douce, ; cotto lampo , nous lo rdpdtons , cst la 
i prGto, dans to palais do l’Industric, aux j 80 ulo ofi aucuno maebino magneto ou dy- 
pplicatlons les plus diverses, la favour do namodloctriquo no participo dircctemont 
i public n’a pas ndgligd la trds cnricuso n i indircctomout a la production dos ra- 
mpo cxposdo par la Sicictc d’ ilcctriciti ! y 0 ns luminoux, quoiquo leur octal ct lour 
nivtrstlle Tommasi. I pouvoir dclairant solent dgaux a ceux dcs 

On sait — ou 1’ on no sail pas — quo plus puissants engins mus par la force md- 
mles les lumidres produitos par les pro- I caniqno. Uno pile — r.ppcldo a juste litre 
■dds actuols exigent uno force molrico ; pile domestique, puisipie ft peine une fois 
onl r importance , et par consequent lo I par mois ollo cxlgo quelqiics soins quo to 
oluino vario scion lo degrd d’ intunalte | premier venu du roste pout lui donner,— 
o 1' dcl'airago obtonu. Dans lo paluis do t sutllt ft procurer d’uno facon rdguliGrc ct 
Industrie toutes cos machines, moteurs ■ constanto, touto i’intonsild liimineuso dont 
.... ft vapour, sont rouiiios duns los on pout uvuu busoin; cotte pile, la plus 
aleries do la parlio nord do V exposition, ingdnicusc ot la plus parfaitc sans contrce 
ft olios acHonncnt les nombreux systftmos , dit qui ait 616 construito jusqu’ft cojour, 
ynamo-dleotriques, d’oft partont les Ills | pout fttro instaltdo dans la cave , au gre- 
liargds du oourant pllotogiSniquo. j »!«. '“'pS.iSmbI qu’ il 

C’ cst cotto force , condition rondamon- mloux. La lampo 

a,„ do la lumidro dloob quo qui os^ a j cst pourvuoVun rdgulalour au- 

aiuso sa olarlG , ot qui ompG f tomal , (IU(1 (pli pcnda „t uno durde moyon- 

lauso promiGre do sa clarlo , ct qui ompG- I 1 . J 

■he son adaptation mix bosoins domcsl1 -I‘ n0 d ‘ huit i, 0 „ r 
pics. On comprond on olfet qu’aucune mai- \ charbon8 ct , 
ion bourgooiso, qu aucun menage, no von- j d(j3 d|m#nl|#n 

lrait el no pout aocoplor los sujotlons, los ■ 68 c(j dlSla[j , 

einbarras, los frais do 1’ installation d une , romp | acelnont a, 
machine h,vapour ou ft gai pour s Go alror. j fournit pondant 

no do huit liourcs pousso graduollomeiil 
les charbons ct cnlrctient 1’ arc voltalque 
ft dos dimensions invariableinent egates ; 
aprGs cc delai, un coup do main sufllt an 
romplacemont dos cliarbous ot la lampo 
fournit pendant huit heures encoro uuo 

Sans parlor defdangors inbGronts ft la pro- nouv(jllo ‘ carr |Gro. 

duotion do cotto foroo, on so figure dint- ^ ^ d#1#rlpUoll „ uo noU8 venous 
cilomont un ronllor lounnt un ohaulTour ou j donncr de Ml lngdll | ollx appareil fait 
un mGcanicion ft 1 “""f rcssortir l’uvantago Gconomlq c qui ro ulto 

ot survclHor sa machino motneo pendant j omploi, ot qui rGaliso lo porfoctlon- 

qu’il ost au thGfttro ou ft la promenade. La n|jment , e plu8 prallqll0 , i 0 plus sdrloux 
lumtGro Glectriquo, cortes, cst coot fois domJstiquo do la lumlGre 6- 

prdfdrabte ft toutes los autros, mats lo pro- ; 

bIGmo do sa divislblltti n’. oyant jas , on- loctrl 1 uo ’, ; : : j. ....... 

La lampo Tommasi rcsout done, do la'memo olioso qunnd lo (jnz nppanit, ddtl'Ui- 
manidre la plus heurouso, uno dcs nlusl na,lt 103 Ialltor »<w <lo qtiurtler, quo les ha- 
grosses quo.tlous qui aiout jiisqu’4 prdsontpsi^oi^^jnprolSSoi^H^fSril^puu^ilos 
6td posdes aux ingdmcurs chages do fairo'soils, quo dirons-iious do colic rni'oil oill> 
ontror la luniiuro vollalijuo dans los be- porto.dos snllos du i’nlnls dclairdos par los 
soins journaliers. lillo joint4 celloqualild j“ m '' e z sc ’ ost n .°" soulomont 
ficonomiquo la facility mcrvcilleuso Uc son qu’oiles iM-oscilventX^Sabllssenien^ 
omploi, la suppression de lout danger d’ac- M C8 . ot , »os ateliers, nmis I'liuUc, la 
cidents, la commodity do son Installation ^V 01,03 clmssont dp nos 
aussi Won dans los apparlomonts do la $ malgrdtoiltes “ofs" o" a°o8 

vlllc ct dos petits ateliers <jn A la eainpa- frols do tolletto ou do ddflulsement. On a 
gne, dans les chAtenux, partout on an mot H 0 * 11 !, 1 ’ 01 nfoi;inordai)8d03feu!!%csd\)i\daU3 

usino a gas capablo do communii]uer uno fuinant, avoc tons sos nulrcs ildfauLs on 
forco motrico, Interdil I'usago dos lampos 1 “ l ./oriiiont 4 Jamais nos , portos. Duns los 
raagndlo illectriqucs. ft 10 * 1 ! 1 ' 3 ,ll \! 011 ost contralntde rompluvor, 

, , 1 ’ II est maudit dos ouvriors, dontil vicio I’ut- 

Au momont ou tous les esprils, Ions los mospliOro; dans los cafe's on leg rosLm- 
oflorls do la science induslrieilo so porlont [fsoWlontc?ln« l I,llii3ul ; 
vors les applications do co morvoillonx isUisdVttvo.?. uoios Wh ' 

agonl qui csl inconleslaWomont appold 4 Rnont dos lustres d'ou sa clialcur'incn 
Ctro la force el la lumidre do I’avonir nous : rail . < ! luU ?, ra -'. onilL ' suns cossc; duns los !,'". 

tion do JI. Tommasi, qui, nous n’en dim. vc , 1 ! t ’ .. 


r Francesco Muccdonto T 

Macteur en cW X2M 


HnnxcxU SoiHombro 18wosploudlt''"douce 1 “et 

Mmmoni mum* 

, »«■ 

, L psasgsi?! 

I Si nn,r W I,UMU!BB "'• ECTm « lJ ' ; % table "” 013 d ’ 0E ! 

uou» h foSru¥mit’ l ’ cxl ? osi f i ’ e st quo'°BrasMu?"Vo U MSvaufc : I 


uoni! SS0U1, n °Iro d'os ll nlMs« 0 j mnto duus 



— ; ‘ ' 6 d “ -Josseiitli- ja 

7^^infn^^TDir^ Al ? 0 ^ a < shptembrb 18U 
f SITIOH D ELECTRICITE Imtout quo lo gaz ondonnai 

[mldroddpourvuo do touto odo 
transformo pas los salons on fo 
qui n’dmot aucuno vapour nul 


«“°. I ’? x P 0 = Uf0 “ ,grammocomnr r o 

l'hommo ni 4 oolio ' 
ou dos polnluro3 doll 
■utour do nous. Voi 


— fournir uno lumioro nar- toutoaloa dltocliona imaginable*. Edison 
lixo. Mala Is corps inoandoscont on uno.potito splralo qu’il enforma . 
mo aurfaco do rofroidiasomont dans uno ampoulo do vodro.grosso oommo). 
plus grando ot rayonno plua'uuo liollo pommo d’opl. Cotto ampoule, * 
la ohulour quo lea moldculos qul avail, on otfot, 111 formo d’uno pommo, : 
uffioa parl’arc voltaiquo. II perietal! formoo on bas par uno maaso do 
icoup plus do forco sans rosultat pliltro quo travorsalont dauxgros conduc- 
t-a-dlro aanalumiiiro corroapon-toura mdtalliquca conduisant lo courant 
id’autrea tormos, lo rondomont dana la Bplralo do platlno doatinea i a'il- 
10 oat pou dlovo; avoo uno momo luminor par iucandoaconoo. 
eelriquo, l’incandosocnco fournit Voilii dans sit physionomlo promicro 
moina <)o lumioro quo l’aro vol- la lampo d'Edison parfaltomout indopoii- 
ar consoquont, ootto lumioro daqto dans soa mouvomonla ot capable do 
chor. Or,uno lumioro trop cou-prondro toutes I03 formes ot toutos les 
'olios qu’on aoiont d’ailloura loa positions quo l'on vout. II sufllt, on allot,■ 

- pratiquo o’ost uno utopio. pour fairo fonctlonnor l'npparoll, do mot- 
uo lo point faiblo du aystdmo tro les conductours mdialilquoa on com- 
la matlbrs a rondro incaa- ipunlcatiou avoo dos fils nucloonnucs' 

commo aos ohovoux do fommo. olio doviiitl j lour radiation. Clianuo 
too capablo do coosorvor uno’ for mo n i d ' 1,61 l° e ' a , yon "“ 0,1 
gido momo a cot otat do miuouur idoalo ?' r 1 l 00 1 vol ? 1 “s, do aorto qu’uno partio do 
Ea cinquiomo lieu, olio dovait Otro.di 5 lfe 0 |?i«J? Ur ' ra / olin60 ? 3t uli,isi ° l dans un 
poado do manioro ii dlminner autant tiuofin J 1 P^n?IH CQ n mutl }? 1 dds spires Puno 
, possible la conductibilito du milimt nm lautro# Pour dimiimcr oiicorn 
blunt pour 1‘oloctricitd ct surtout pour lan!°ni° v ^» mIcur on rQC0U vrait lo ill, a ti 

d’dvitor lorofroldlafomontmSmo U "° m i nC ° Couoho d ' un oxydo 
fmL vil 10 , Uno , porl ° oonslddrablo dodosfc™ °? sa , ya ««« foulo d'oxy. 
forco vivo, porto qni coaatituo lo vloo prin-orand i* i. B 01 lno ' torroux ot d’un 

sugar «• 

A?dn^Jno dq^aui^parca^qu'lU^qrorwUno 

,foublor *“« lour 




TJn des plus grands altraits de l’Exposi- 
tion d’dleotrlcitd est sans contredit la sails 
deM. Edison. La foule s’y presso tous 
les soirs. M. Edison fait bien rdellement 
salle comble ; on avait tant parld des in¬ 
ventions et surtout do la lampo mervcil- 
leuse du pbysieien do llenlo-Park! Tout 
le monde veut3avoirjusqu’4 quel point le 
cdldbre inventour a tenu ses promesses. 
les premiers que M. Edison dtait parvenu & 
rdaliser un systSmo complet d’dclairage 
dlectriquo, tout prdt 4 6tre substitud 4 
I’dclairage au gaz, on aocueillit lanouvelle 
aveo une oertaine incrddulitd. On eflt vo- 
lontiers rappeld le proverbe quo l’on ap¬ 
plique aux inventions qui viennent do 
loin. On prOnonja mdme lo mot de mysti¬ 
fication. Un dlectricien, et des plus dmi- 
nens.dorivaitloetto dpoque enfaisantallu- 
sionau systdme d’Edison: « C’est une idde 
4 l’dtat d’£bauche,qui n’a rien de neuf et 
no nous parait pas devoir conduire 4 des 
•rdsultats bien sdrieux. » Les temp3 sont 
ibien cliangds. Tous les doutes ont dis- 
-paru. Ceux qui voulaient toucher, comme 
saint Thomas, ont aujourd’hui les lampes 
sous les yeux. Tous les soirs, des lustres, 
des canddlabres rdpandent leur lumidre 
douce et dorde dans les salles 24 et 20 
et dans difTdrentes parties du Palais. Le 
sucods est considdrable; 11 est consacrd 
joumellement par l’enthousiasme, les td- 
moignages d’dtonnoment et d’admiration 
du public. 

Quo pouvait-on ,'soubalter en effet de. 
plus joli, do plus oxtraordinairo mdme 
que ces petits foyors'do lumidre si fixo et 
si calme; si. caressanto.ppur le regard I 
Nous sbmmcB habituds 4 nous reprdsen- 
ter la lumidre dlectriquo sous forme de 
foyers dblouissans, scihtillans, dura' 4 
l’ceil, bruyans, changeant sans cease 
dTntensitd, aux tons variables et bla- 
fards. Ici, au contraire, on a dovant soi 
une lumidre qui a dtd en quclque sortocivi- 
lisde, accommoddodnos habitudes, mlse 4 
nolro portdo; chaque bee dclalre. comme 
du gaz, mais comme un gaz qu’il eQt fallu 
Inventor, un gaz donnant une lumidre 
d'une fixitd parfaile, gaio et brillante sans 
gdner la rdtinc. 

Et quelle dilTdrenco avec Io gaz I Elio 
ne rdpand dans l'appartement aucun 
produit de combustion, ni acide car- 
bonique, ni oxydo de earbono, qui vi¬ 
olent l'atmosphdrc, ni acide sulfbydri- 
que, niammoniaque, qui altdrenl les pein- 
tures et les tissus; ello n’dldve pasta 
tempdrature de l'air et no produit pas cette 
chaleur si.incommode etsi fatigantedugaz. 

Ellosupprimo tout danger d’explosion 
et d’incendie; cllen’est pas soumise pen¬ 
dant les froids 4 des variations d’dclat 
ddsagrdables, ni 4 ces changemcns de pres- 
sion dans la canalisation, qui rdsultcnt 
de la condensation de certains car- 
bures d’hydrogdne. Elle va toujours 
de sa marche rdgulidre et impassible, 
quelles que soient les inlempdrics des 
saisons; que le tliermomdtre descende 
au-dessous do zdro, que le vent souffle 
en tempete, secoue les arbres et les 
canddlabres, ello donne toujours la mCmo 
somme de lumidre. Ello brdle mdme au 
milieu do l’eau aussi bien que dans l’air. 
Ello est compldtement inaccessible aux 
influences extdrioures. Que d'avantages 1 

Vous rentrez chez vous. Avec lo gaz, il 
faut tournor lo .robinet, enflammer une 
allumette et la lumidre so fait. Heureux 
encore, lorsque par mdgarde on n’a pas 

onblld caparlantdenien-fcrmer le robl- 
net ;; autremontlo gat so serait- dchappd 
; et .-oiijralt obhailtuA^miBU -uin. 

lango ddtonantjen idjumant, Id, bee,, .on; 
produiraituno exploslon.Oupcut sodeman- 
der comment' les adcidens’ n’arrivent pas 
plus souvent etcomment, surtout au ddbut, 
la crainte de ! oe danger, qui n’a rien d’im- 
possible, n’a pas retardd lerapido ddvelop- 
pement qu’a pris l’nsigo 'du gaz. L’habi- 
tude est bion vralinent une. secondo 
nature., Avec l’dleptricild, o’est autre- 
m'ent • commdde. Vpus rentrez, vous 
presscz / .un bouton,, et, sans. fpu, sans 
allumette, Unite. Uu'maiaon . a'dclaire. 
II y a mieux oncorojen fait ce que l’on 
veut do l’dlectricitd.' Appuyor sur un 
bouton ou tourner un roblnet voiis sem- 
blo-t-il trap exigert Qu’4 cela ne tienne, 
vous ouvrez la ports do l’antichambre, 
lo bee dlectriquo s'allumera'de lui-mflme; 
vous pdndtrez dans lejsalon, les lampes 
brillent, les canddlabres 'jettent des, tor- 
rens de lumidre; vouspntrez dims voire 
ebambre, dans votre cabinet de travjail, 
les bees s'allument antomatiquement. 
Par cela seul quo vous ouvrez la porte de 
ohaque pidee,. vous obligez la lamps 4 
donner de la lumidre.. M. Edison est un 
magioien. , . 

L'invontion du physicien amdricain 
nous paraltmarquer une_dro .nouvello 
dans les proeddds de l'dclidrage publio. 
C'est en eflet un systdmo absolument 
complet erdd de,touted pidees et qui per- 
met une application immddiato. II mdrite 
de fixer tout partioulidrement l’altention." 

Les premiers essais do M. Edison re- 
montont 4 l’annde 1878, L’dchp des expd-r 
riences d’dolairage dlectriquo de l’avenue 
de l'Opdra et de l'Exposition de Paris par- 
vint 4 Edison pendant qu'il faisait un 
voyage avec M. Draper 4 travers les mon- 
tagnes Rocheuses. L’inventeur amdricain 
avaitddj4 une rdputatlon ouropdenne; on 
avait admird au Cliamp-de-Mers ses. ap- 

pJnreilcf pleins d’orlginalitd, tela que le 
phohographe, le tdldphono 4 pile, le 
itdldgraphe quadruple!, etc.POurquoi, lui 
dit un matin son compagnon, trds dmi- 
nent physicien lui-mdme, pourquoi n’a- 
bprderie^-vous pas aussi le probldme de 
l'dola(rage par l'dieotricitd? Edison rdfid- 
ohlt quelqucs jours, et, dds son retour, 
on le vit laisser de cOtd les tdldphones et 
d’autres. inventions on prdparation; sa 
rdsolutlijn dtait.prise; il so mit 41 'odu- 
yre immddiatcment aveo les puissans 
jnoyons d’exdcution que les capitallstes 
des Etals-Unis Bavent mettre 4 la dispo¬ 
sition dds liommes de science. 

Son pi iniutvite dressd: il ne lui conve- 
nait pas'de rdaliser tout bonnemeht une 
lampo dlectriquo meilleuro quo les autres; 
il s’agissai de trouver une solution com- 
pldte do ’ddairage; machines produc- 
trices d’dlcstricitd, conduitea souterraines, 
distrlbutioi 4 domicile, compteurs, etc. 
Il fallait, n un mot copier, le gaz,. 
suivre do ous points le systdme aotuel 
d’dclairaga qui cstpassd dans nos habi¬ 
tudes, liv or des bees de huit ou .seize 
bougies cpmme les, bees de gaz, faire 
payer le eo . dlectrique d’^prds la con- 
sommatioi d'dlectricitd, introduce la lu- ; 
midre die itrique ..dans les maisons par 

des. canalsations, etc. ; bref, adopter 
les combli daons des.Compaguie? de gaz,, 
tout.en anurant au consommateur des 
avantages lertains au point dp vue de la 
ddpenBe, < :s facilitds d’installation et de 
la beautd le lp lumidre. En moms de 
deux ana, :e plan qui efltparu 4 tout au¬ 
tre inexdc table fut cependant suivi de 
point en p int et rdalisd dans toute son 

On ne so fait gudre ici une idde 
des difficultds qu'il a fallu vaincre, do la 
sommo iicroyable de travail qui a dtd 
iourni pendant dos mois; on a expdri- 
mentd niit et jour au laboratoiro de 
Menlq-Pfrk transformd en usine; on 
compte jar centaines' de milio les es¬ 

sais et:les expdriences prdparatoires; on 
rptrouve de,tous cfltds dans l'ceuvre ac- 
oomplle la trace des' efforts prodigieux 
quo seulo peut fairs une volbntd indoinp- 
table surexcitde 'par des entraves sans 
oesse renais'santes. L’invontion est venue 
4 : son heuro comme sur commande, 4 
prix d’or, et enlevde de vive force par le 
gdnie d’un homme. C’est un exemple sans 
prdcddenB et qui restorapeut-fitre unique 
dans l’histoire des ddcouvortes moiiernes. 
'Elle serait bien curieuse 4 retracer, l'his- 
toire compldte de la lampe Edison. 

Toutes les reoherches du physicien 
de Menlo-Parlc se sont d’abord couoon- 
trdes sur la base du systdme, sur l’inven- 
tion d’un foyer lumineux vraiment prati¬ 
que. Aprds quelques hdsitations, M. Edison : 
admit en principe qu'il fallait abandonner 
pour un dclairage domestique la lumidre 
par aro vpltalque, trap dure 4 l'oeil et 
ndeessitant 1'emploi de baguettes de 
charboq. Avoir 4 mettre dans une 
lampe chaque jour une'provision de ba¬ 
guettes de charbon est upo sujdtion in¬ 
compatible avec nos habitudes; o’dtait en 
revenir 4 la mdche do nos lampes aveo 
cette aggravation qu’il dtait ndqessaire de. 
larcnouveler sans cease. Ilfallait imaginer. 
un beo fournissant de la lumidre 4 la fagon 
des bees de gaz, sans qu'il y eftt lieu de 
s'occuper de l’entrctien de l’appareil. On 
est naturellement conduit ainsi 4 n’ad- 
mettre, pour la solution dcla question, que 
la lumidre dlectriquo produite par in¬ 
candescence, et non plus par arc vol- 
tai'que. . • 

Qu’est-co quo la lumidre par incandes- , 
cenco? Il faut so rappelor que tout courant i 
dlectriquo traversant un conducteur md- c 
tallique dchauffe plus ou moins ce con¬ 
ducteur, en raison de la difficultd qu’il f 
dprouvo 4 se frayer un chemin. Le frotte- c 
ment, comme on sait, engendro de laoha- ' 
leur. L’dlectricitd, en circulant dans lo > 
mdtal, y rencontre sans cesse dos ob°ta- I. 
cles 4 sa propagation; elle frotte contre 1 1 

; de ol>ileur.;Si, 4 un conductefir ?c- 
. latiyernent; gros.- on .soude un . conduct 
■ tour.trds dtroitcJe couraht iau ,point "do 
raecordement -.est dtrangld; il dnrouve. 
beaucoup -peine pour passe?, ? “Ia 

frottemens ,v,;sont , dnerglques , et /la 
chaleur. produite.. devient subitement 
dnorme daps .ce. couloir dlroit. Le conduc¬ 
teur pent etrejbrusquement portd 4 une 
tempdrature:de, 1,500, 1,800, 2,000 degrds 
Il est rendu.incandescent et jelte un dclat 
trds vif. Tout le .monde a vu rougir ainsf 

m/d(J S n d r UD . 00Ur f nt dlectrique dee' 
filsde pldlinoi-La tempdrature engendrde 

«nf n npnAnf r&i8lanCe °PP 03<5e «U COU- 

rantj.pendmt son passago 4 travers le 

'O'o Qt&e&H v4^ 

./ ' / 

DU 27 'oCIOliRB 1881 '. 

• exposition ' ib’i^tcTivicffifi:;; 


Noua^avons dAcrit la.lampo .de^E^ljj. 
son. Uno lampo, ai.excellenle qu’oUc.aoit, 
no c'pnslituo pad b ello seulo un syatbme 
complet d’Aclairagb; cen'cst'qu’un rouage 
cssentiel dansTbnsemblo.Oa no met ,pad 
d’AlectricilA dana uno lampo comme.on y. 
met doThulle.'La production Aconomique 
de 1'AlectricitA exigeant des machines °- n 7- 
combrimles, il cat Avidcnt quo pour'fafrc 
pAnAlrer le nouvel Aolairagb daps los iptp- 
aona, il jest da toute nAcbasilA do .le 
rendre commode, et' dlobligey ■ lba,. ci^U: 
rana AlcctriqueB.^b' venir, d>ux-inflp).cp. 
danalea iampea, commeon co mdment.ip 
gaz arrive jusqu’aux.bepa.'.U.’ EdisorCa, 
rAsoln 00 problbmb.'ctnoub'ailona eaailycj: 
d’cxpliquer sojnmairement, comtoept,!! 
fabriquo l’dlcctrtdtb par grande8 quanti-r 
Ida, la canalise et la diatribuc b domicile,. 
Nouane saurions trop rApAter quo nous 
ne dbcrivoiis pas ici les dAtaila, d'uq sin}'-, 
pic projet',plus on moiua Sujel i oautiobj 
raaia bicn un'ayslbme cxAculA et prfit 4 

j feiia'rd.allB^a,' pi^ta ij biro ,ppsto|l 

1 aaile.’Edlapnj au 1 Palais* dps Cliaipi 

'LorsqnTl a’afeit du;gaz, i.qu’il.dgsIM 
'toui 6 prendre pounmodAtefiarpo 
.jqu’jl,» poup, lui PexEdtippce. acquis ,m 
installe, aelon le pArlmbtro;b de^iryir,;| 
;uno ”. ou- ipluaieura ualnos . dapajj.daqup: 
ivillo. De m 6 me,,,rinvonteur'iaineptain a; 
Irecours. A .upe ,op.:plqsieurs fabrimw d' 6 -| 
lilectrioild, solvent , 1 'imppr,lance digplrimb- 
, tro 4 dclairer.; Le. gaz a'en'fei sof 
jtcrro.daqa. de groa .tuyaux M au 
llvont lea artbroB, .prlnoipales; f nr 
'premier rdaeau, on grefTe dea tiijiux de;. 
|mpimlrpdiambtre qul .lqngent„les ruea| cnflq.^ur,' ebsibun, d’.eux 
on brancho dea.tuyaux enepre plua pelils 1 
quidonnent accbsau gaz dana chaquo mai-, 
aon. jVeat ce mode,do ; .panaliaation qui a 
|jdte.npproprld,an tr,an 0 port:et A la dialer 
'button de rAlectricitAj •rtrVii--. 

' . De.ohaquo'uslne centfqip' pgplent doq 
jeonduitea mailrcasea.qui,.font -rsyonner 
'danatoutoa lea ruea des.ponduitea accon- 
jdairea, aur lesqueUcsso greffent 4 leur 
jtour. lea conducteura de petite, auction 
qui pbnbtrent b domicile. Eu apparenco, 
;lea conduUeS pour l’dl'eotri'oitd sont spin-, 
blableabcellea du gaz.bcelaprb'sqaeleur 
fdiambtrp eat extrbmement rAduitjIesplua 
[grosses ne dApaisent pqa.,le .dJanllre^dq 
;braa.',de aont aussl dea tuyaux, naia des 
■’tuyaux qul au lieu d'fltrecrcux. renfor- 
ment deux tiges do cuivre puridemi-cyi- 
llndriquea, o’eat-A-dire plates d'oacOtb, 
rondosde l’autre; si f op veut.^uno .tige 
cyilndrique. aciAo. par' le' milieu dang 
loiitesa longueur. Oca deux tringlts parol-' 
lbles qui so prolongont 4 traverp Itute la 
:canoliaition sont ompitAea dans u: mas- 
jtio iaolant. de composition noarbie; : , i. 
'pout remplacer la gutta-percha cl cottte 

ibr toute dbperdltlo'u d’blectrloltb, 

Imddlum dola maltj fcaconduptoura d’ao- 
eba dans lea ma^bij',; oommo lo. petit 
’doigt. Lea raccordjdQtrq les^onducteura 
jde dlveraos aeotlou Jopbrqnt faodoqiont. 
A chaquo otoiaqiqeitBdo, rue, .lea tuyaux 
'pdcbtrentdaqa.uqcMIto jnlerpoabo ; daq8 
la canallsatlpn, Uiirlnglea de.v.ouivro 
,a'y montrent A.>|1 ; dans.-l'intbrlenr. 
On.rqlio, par ( dpa plqo3,,mbtalllquca lo 
bonduclout d’a'dpr .cpndqcteur-sitnU, 
'lalre de -la, oonddleltpialtresse,, ot .do 
'mbme le, conduct jn,do ; reto t ur;, 4' son 
.'bomolbguo de ls c*n#iUe’; .ot i’embran- 
chement cat fait- TjuJafola ladialaon n’est 
paa dlrecte; .pile itjrbaliabc , pour - lea 
, doux oonducleufsVijcbs du courant par 
junelamo do plbinb*.i joiirratt aurvenir on 
delict quo, .pour . ni»-|caua.e ou; pour uns 
jautro,,Jo couranl'lectrique■ tranami8 de 
'l'usino acquit bruqdement uno intonaltb 
exdepUpnn^lle'.-'gcte'lniqijaltd aeraltAufr 
iaaiute jpour.Alcvi'jjponaidbrabloment la 

. :e jpour .Alevtjxc_ 

tempdraturb.d'um,porUoa -.dee. conduo- 
teurs’p pqqr dbooDKiso'r.yla ,matlbre-1 iao: 
la^ie. et, »,urt6pt;', pWi V » cSbire; 

coup lea ,.fl)s .de .cqnmunipatlon dana -lot 
jnaisonA. SI ces flUjAtrouvaieni prbs de 
rideaux ou do teiiurea, un incendle ae- 
rait & redoutor. M.E(li8on a-ponsA b. tout. 
Qqpp, eo ca^,| i .lA..ppnb..4A.> )lt tolte s’A- 
cUauire ;et cq'mqiaii,rbndAr33S d«igrAa,.b 
une, teinpbrature qij n'arien de dangereux, 
il rompt par ceja ntaq .toute coramuniea- 

courant de;passer.- et< pare it toute-Aven-i 
lualllA.'La lame do plomb ■ sort- d’apparcil 
de aftretA : on l'appelle en AmArique-cu/-, 

Le raccord ontre lea conduitea do la 
rue ot lo tuyau-.d’accba dea maieons s’o- 
ipbre de la.mAme manibro b travers uuo 
ibotto Agalemont. munio de la-lame-de 
plomb prAservatrico pour pluB do sAcu* 
rilA. Euflu lea conducteurspartlculiersde, 
ioliaque. malaon so rAduisont k de.aimplea 
'Qls-iaolAs. par du; colon point b la cAruso 
et .qul rayonnent dana tous.les appar-;.. r -e-,; -•. 
j Lea Iampea. sont dispoaAos aur dea lna- 
'trea,- aur dea candAlabrcs, aur dea appli- 
quea mobiles, anr dea chandeliers. Dans 
tousles cae, leur liaison ave'o lea ilia eat 
toujoura rAaliaAo par lo mbme moyon. 
L’oxtrAmitA' du globe do verre eat lutAc 
avco du plftlro dans uno aorlo d’anneau 4 
jdeux virolc 8 de cuivro. Un dea ills cat en 
communication avec uno dcs virolcs el 
le Beopnd-lll reliA bl’aulrc virolo parfaite- 
ment iaolAo de la premibro; on retrouve 
cnooro ici b 1 ’intAricur do l'anneau- 
aupport un ill de plomb qui sort de 
trait d'unlon entre lc ill d’accbs du cou¬ 
rant ot/la virolo. qui Atabllt la communi- 
cation,avec lo fil de la lampo. En cas de 
beaoinl on fondant. il coupcrait lo circuit I 
et cmpSohorait lo courant de dAtAriorcr la 
lampclou son support par sa trop grande 
intouaflA. Chaquo brancho d’un lustre on 
cheque bras d'appliquo porto uno - clei 
analogic au robinct de gaz. Quand on 
fait, tolrnor. la clef, los contacts B’Alablis- 
aent eitre lcs Qls do la lampo ct les fils I 
du cirtuil aouterraln et la lumibro brille. 
La maiceuvrc inverso rompt touto com- 
innnicltion et, Atcint la lampo. Plua do 
eburajt dana l’apparlement, plus do Ir 

L'anologie qveo le gqz eo .poiirsuit dSns 
loua lea tlAtallaavec oelto diiIArenco''C8- 
aentielleici quc,;Ie.roblnet fermA,,lo gaz 
reslo toujoura dans los tuyaux prfit a a’A-: 
ohapper, ct b produlro dcs explosions. 
L’AleotritA ne oirbule plus, la clef fermAei 
ol d’ailleurs si olio oirculait elle no pour- 
raitamener auoun aecldent. La clefdest 
conlquo et b large-surface de faQon 4- at-1 
tAnuer reffel do: la petilo Alincolle: Aleoy 1 
Iriquo.qui so produit toujoura quand on 
rompt le courant.:,- y • ■■■■ n«- • .<* 

Dana’la aallc'Edison, co systbino csl 
appliquA b deux grands Iuatrcs 4 oristaux 
et b 80'bi-as,- inatallAs-lo long dAs murs. 
100 Iampea brilieht tons los- aoirs. ■ 

Lc npmbre dc3 lampes sera augmeniA 
dansquelques jours; on doit placer un 
■nouveau lustro de 144 lampes, descandA- 
labreade 25 lampes ct des girandoles A 
4 Iampea aur, le pallor du, grand espalier. 
Plnaleura expositiona du rez-dc-olianaaeo 
sont AclairAea aussi aveo des lampes Edi- 

i morit los AlAmehs 1 touteprob 
ductiondo I’dlectricitA, lamachineivapAuf 
et la machino dynamo-Alectriquo.-.Toutoej-i 
fois.'M. Edison a mis ,aur l’ensembloidu??! 
systbmesa griffepersonnelle.Il-a-coriiblnA'' 1 ’ 
un typo nouveau 4 rendement consIdAra-- 
ble, appropriA aux-- conditions -apAcialea jT 
;du fono|lonnement aimultanA. d’unf ltd? P 
grand.noinbro do -Iampea. -Chaquo.: g 6 nA 4 -, 

: rateur do courans doit Atro^modiBAcaeloibj- 
lo.rOle qu’il doit jouor.'Le gAnArdteur pour; r 
la galvanoplaalio n'estpas combinA comma P 
le gAhArateur pour- la -lumibro, jet v.celuirci! A 
lui-m6me chaugo a’il a’aglt dedumiAre pan 1 

Voilb succinotement pout la- canaliaa- 
tion ot la distribution b domicile. Il est 
superflu d’ajoutor que lea dimensions re¬ 
latives des conducteurs sont dAterminees 
par lo caloul. Le .-diambtre des^ condnc- 
leurs bgroaso section dApend do la lon¬ 
gueur do la canalisation tolale, otlea dia- 
mbtres-dea conduotoura secondairea-aont | 
eux mbmes fixAs d’aprbs la grosseurde la 
conduite prinoipale. Tout so tient.,Cemode 
do canalisation est Avidemuient plua sim¬ 
ple quo celui du gaz. Lesi tuyaux - exi¬ 
gent plus' pour leur pose-do profondes 
trancbAes; on peut-les Atablir dans es 
Agoula ou dans des camveaux on bordure 
des trotloirs. ■ • 

_machiueB-dyuamo-Alcctriques :o . 

AlA conatruites jusqu’ici ipour ialim'ontor.m 
un ou‘quelque8 foyers; or, dans 1'appli- ’ — 
cation aotuolle,' -elies -aont. doatinAesiib 
.fournir do l-'AleotricitA b des centainOa do l 
lampes; il fallait dbnc un :diapositif pifi?- j 
tlculier.- Noua avona dAfini au commence-* 
menl do ces Atudes une,macbino dynamo-* I 
Aleotriquo : « une bobine - do ill's mAtallt—.; 
quea tournaut sana contact--devant lea | 
pOlea,- d’un- aimant; ou-’ dlun:'.Aleotro- 1 
aimant. » L'lnfluence: do l'aimant cn-. 
gendredana le filde la bobine pendant 
son mouvement des couranB- AlectriqueS 
que lion recueillc. Si. le ill de la. bobioe. 
estgroset court, les courana. efigendrAa. 
out pen do teuton; s’ils soul fins'et 
longs, les courans ont beaiicoup do ten- . 
aion.Pour allmenter des'lampos 
de8cencei il.est ,indispen8able l afin i dq:sb 
jmeltie dans de bonnes, conditions .de reu-. 
dement, de ne go aervir quo'de courans’ b 
faibb tonsion (1). Aussi- M. 'Edison’a Al'A, 

(t) 1 Importe, ea.eflT«t,' que 
icuVtiu’otTro la machine au pasai 

Quelques lignes maintenant s ’ lr rn P lue fneadpse™ 
oentrale. Nousy retrouverona pAcessaire- pcs,^r6.u 

imeut Hurt ae 8/10 do continio.AdmeltoD8 encore quo > 

Heniu de Parville. 

... f&: , lasbff8ia>yn,,touf , prSiattr&u^ 

!■ / «J»«i el rtp'fiaSt 2Sr' **£ ■ $ rf*5jj&- 

la Richie so confond 

deux sources lumineuseg 
chaVr^ P f)l i P0Ur oha( I ua dislaoce d„ 
est trta simple. Le rappjrl des 

est immddiatemont indiqud. 

11 hom reste encore trt'dernleir point i 
dluolder. OtfpMe Ie g4z « rfldon .do f 
consommation journalise, Et 1 dlpctricltd, 
comment ipprdciera-t-on la t ddpenpeT 
Cheque malson, ohaque appartemenl 
mflme aural son cornpteur d dleclrlcild 
comme anjourd’hoi son cornpteur 4 gaz. 
Ces potiVs appareila fignrent dans la sec¬ 
tion d’Edison au palais; ils sont mignons 
et de dimensions rddultes. 

On a sous lee yeux unobolle mfl- 
tallique d’envirdn'55'ceutimfltres do hau¬ 
teur sue 20 dttlargenr-ot 12 centimetres 
d’dpaisseur. Placde verticalement, elle 
s’ouvre a deux Battans comma les deux 
portea d’uno amoiife. Elie ebt par- 
tagie intdricurement par . nno clolson 
verticals en deux compartimdns dans' 
chacun desqu’ela. se r trouve uri petit 
flacon plefn d’ane dissolution bieua de 
sulfate de ouivre. Chaquo flacon renferme 
en outre deux latoegmdtalliques en rela¬ 
tion avec les dSinfiict'd'urf du. rdseau & 
leur entrde dans la malson. Une petite 
friction, toujoura constants, du courant 
gdnlral pdndtre par les lames au sein de | 
la solution cuivrique et la ddcompdse; du 
ouivre s\ddpose auruue deslames. Letra¬ 
vail ohimlque effectud mesurant oxaote- 
menll’dne^jie du courant utlliad dans la 
maistn, ilsnffit de geserlo ddpfltde cuivre 
pour dfaluer k quantity d’dleotricitd' q'u’on 
a diposde.TaM' les mots un agent ouvre 
le comiarlimeii de.droite dont 11 a la clef | 
et pdsele cuiykj. Tousles qns,. un con- 
trtleur mvre lolcomparllment de. gauche 
dont sell aussi i| a laelef cl pdse le ouivre 
ddposd.^a somme des pesdes me'nsuelles 
dolt dtr .dgale', lommo vdriflcation, 4 la 
pesde anuellc. | ' . 

Ea bier, quaid le frold devient in¬ 
tense, kddcomppsition, chimiquo. pour- 
rait dtrattdnude j il ne faut pae que les 

Variations de lempdratnre ddpassent unC 
bertaino limite. poor; quo le procddd de 
ieaure reate exact; ausst ^..Edlspn .«• 
Wl'iDtrodult dans ctoque comparlimont 
no do ses .petiteB lampes : une tlgo md- 
iliique 4 deux mdtaux, indgalemcnt dlla- 
ablea bo courbe sous faction du frold et 
-iablit un contaot entre la lampo et une 
prise de courant. La ldmpe s’illumine et 
chauflo le cornpteur 4 une tem'pdralure 
s'dnslblement constant^. Tput, comma on 
volt, a did prdvu et parfaitement rdsolu. 
Qu’il s’aglssede lumidre oude force trans- 
njiiee, loot nb'onnd payera en raison: de 

r.dlectricitd .qu’il aura ddpensdo,. 

| S JTel est dains" ses grands traits le mode 
Si production, de canalisation, de dis¬ 
tribution ct de meBurc de l’dleclricitd; 
iftagind" par M. Edison. 

i Quel sera dans un pareil systdme d’d-. 
olairage le prix de revient ? • 
j II est incontestable quo la inmidre par 
incandescence est do beauicoup pins chdre 
que la lumidre par arc voltalque. Chaquo 
fbis quo l’on multiplie les foyers, on 
accrolt lo nombro des cbarbons 4 
dphaiiffer, on , augments' les pertes de 
chaleur. les surfaces do rayonnement, les 
rdsistances dans le circuit, etc.; on doit 
fbrcdmant, avec la mflmo forco donner 
iqoins do lumidre. Bieu que la diesdmina- 
llpn des lampes permette de regagner uu 
peu par une meillcuro distribution do la 
lumidre, 11 n’eu est pas moins vrai que la 
division aboulit toujoiirs en prinolpe 4 
un rondement faible. 

II eu est de mflmo pour le gaz. Un petit 
bpc consomme relativement beaueoup 
plus qu’uu bee puissant. 

Ainsi, le bee papillon de la Ville donne 
1 carcel 10 et ddpense 140 litres. Le bee 
de la rne du Quatre-Septembre donne 
■\i carpels etna ddpense que-1,400. litres, 
Les bees intensifs Siemens fournissent 

pour 300 litres 6 carcels pour, 000 fi{i , 
14 caroela; pour 80t).fitros, 2B carols; 
pour 1,600 Utres, 47 carcels. On volt la 
adpensb,, dlmttuor avec l’in?6nsltd. du 

Une latfipe par-, incandescence donne; 
par oheval, et par beure, 20 oaroels dta- 
tribuds oh 20 fbyers; landle qu^n sfcnl 
foyer dleotrique trdi pulssantpeut roornir. 
par heurb jusgn’4 280 carcels. On admet 
qu’en moyenne Ie rendemont do la 14- 
midro par Incandescence eat plus de dix 
foiB moindre. . ' , 

.. Male oel.qul'importe, oe n'est "pas .le 
prlx relatif de la lumidre par inoandes- 
oenbdfet par arc, o^est; le prix dfl. revient. 
compard 4 celni du gar. La lumidre dlec- 
trlque est moins chdre quo cello dtt gaz, 
qu’il B'agissef de l’dolairage par arc ou 
mflme par inoandescenoe. . „ , 

En brfllant direotement Lmdlres ctibds do. 
gazdans an bee, on no pentlprodniro au'deU 
de 40 carcels. Si l’on ddpense. cotto mflmo 
quantitd de gaz potir fairs do la force dans 
un moteur Otto, oq obtient. quatro cho- 
vaux deforce qul, transformds en dledtri- 
citd par une maohlno Gramme ,et on lu¬ 
midre par un rdgulateur Serrln, donnont 
uno puissanoo lumlnouBB de plus do 300 
beos Carcel, en ddgageant 180 fols moius 
de chaleur. „ 

Lo mdmovolumo de gaz pout done don- 
nor 4 volontd 40 bcc3 ou 300 bees, solon 
lo mode d'ulillsation. II est vraisemblable 
que le gaz dans, l’avenlr sorvira surtout 
de combualibler 11 donne enfln 13,000'oa-- 
lories, quand la boutlle n’en ddveloppe 
que 8,000. 

Lee foyers Intenses et uniques ne 
peuvent pas dire appllquds aux usages 
domesliques ; mats, mflme aveo les lam- 
pos 4 incandescence, on va voir qu’il y a 
avantago 4 transformer encore le g4z 
.dluotrlcUd,. . , . .. 

En effot, lo parliculier qul vou- 

drait dfls. malntenant dclalrdr son hotel 
ou sa malson avoo les lampes 4 Incan- 
deseoUce; sans sttendre l’dlabllsscmont 
l’uno canalisation gdndrale, n’auraii 
ju’4 | Installer ebez lul, dans le 
jffus-sol,. uno machine 4 gdz de lin oil 
deux dlievoux. La machine ddpense par 
heure et par ohbvql 1 ihdtro cube. Ce 
jndtre oiibo, transformd en dleclricltd, 
fournlt avec les lampes Edison 20 carcel 
etulimonto 20 lampes de 1 carcel. Le 
mdtre,onbe brflld directement dans des 
b jes de t, carcel no fournirait que 7 4 8 
carcel; En no tbnant pas compte de 
l’intdrit; ’du ,prlx tin moldur et de la 
machine, et do l’amorUssement, on obtien- 
(Jrait 4 Paris la lamtdre dd 20 carccl pour 
30 centimes, soil’1 centime et demi pari 
Carcel. Le bee carcel gaz coflto environ 
4 centimes. Avcc les intdrfils cl l’amorlis- 
sement, pour le systdmo mdcanique 
venant 4 peu prd<'4 0,000 fr., ct pour 
dclairage do 8,000 beures par an, 
trouvo comme prix do revient environ 
2 centime's par carcel ct par beure. 

Lorsqu’on produira l’dleotricild par des 
machines 4 vapeqr puissantes, la ddpense 
on charbon dtant rdduito par force do 
oheval 4 1 kilogramme, ct le kilogramme 
do houille coOtani 8 o. environ, si l’on ne 
tlent pal compte des frais do canalisation, 
d’lntdrfit, eto., lo prix d’uno carcel des- 
dendraiti un quart do centime. 

II c3tjimpossiblo en ce moment de prd- 
qiser del cliiflres ddflnilifs paroe que tout 
(^dpend dvidemmciit do la longueur du 
rdseau ft de sa densitd, c’est-4-diro du 
riombretde lampes qul pourront fltre 
groupdel sur lo mflme coiiducleur par 
unlld delongueur. II est clair que les prix 
s’acorotffont en raison de la distance 4 
laquellqjll faudra porter la lumidre ou la 
force. Tout ddpend ausst' du nombre 
d'heureS de travail. Lo chiflro d'intdrflt, 
d'amorlesomenl so rdparlit foredment sur 

ce nombre d'bcures. SI do pin's, i’usind 
envoio do la force pendant toute la jou'r- 
nde 11 est dvide'nt quo les Irals sont rd- 
duits en proportion. 

Exemple : Admettons un rdseau da 
80 kilomdtres de ddvcloppement alimentanl 

20,000 lampes ou moteurs, et ndeessitant 
une force de 1,00.0 chevaux. C'est une 
densitd do 20 lampes par 80 md- 
Ires, ce qnf est loin d’etre exagdrd : 
11 faudra 80 kilomdtres do conducteurs 
doubles, c'est-4-dire 100 kilomdtres de 
conducteurs simples. Supposons que 
les besoins du rdseau ndeessitent la 
pose" de 20 kilomdtres. de, conducteurs 
d’une section • do 2 centimdtres car- 
rds et 80 centimdtres de conducteurs do 
petite section de 1 cciitimdtrecarrd. Leprix 
dukliogramme do cuivre pur dtant de 1 fr. 
00 c., on peut eslimor le kilomdtro de gros 
conducleur, avec eon isolant, son tuyau 
do fer enveloppe 4 prds de 9,000 fr., et le 
petit conducleur 4 3,000 fr. environ. Dd- 
penses, environ 500,000. fr. Avec la cana¬ 
lisation suppldmentaire, les machines , 
les rdgulalcurs, eto., on peut doubler 
ce chiflre pour les frais d'instaUalion, 
et alter au million on ohiflres ronds, spit 
80,000 fr. d’iutdrdt annuel. Les frais d’ex- 
ploilation, loyor, personnel, amortisse- 
ment seront d’au moins 180,000 fr. Total, 
200,000 fr. Cette somme doit so rdpartir 
sur Ic3 20,000 lampes. Co qui fait par an 
otparlampe 10 fr. Si les lampes sontuti- 
lisdes pendant 2,000 benres seulement, la 
ddpenso affdrente 4 ohaque foyer sera de 
undemi-centim. Si le travail se poursuit 
pendant 5,000 lioures, la ddpenso baissera 
' un cinquieme de centime. 

Prenens lo oas le plus ddfavorable 
2,000 beures. Le prix do revient ser: 
d’une part d’un demi-oentime. 
l’autro d'un quart de centime pour les frais 
do combustible, soit en tout do moins 
de 8/10 do centime. Admettons encore que 

chiflro, nous arrivons 4 une ddpense par 
carcel d’environ un centime et demi ii deux 

II est clair qu'en vendant 4 Paris la lu'. 
midre d’un bee trois centimes par car¬ 
cel, on ferait encore de beaux bdndfices 
et le prix pour lo consommateur serait, 4 
peu prds, d’un tiers moins cherque celui 
du gaz. Nos chiflres so rapproohent beau- 
coup do coux qu’annonce M. Edison. Lof 
physioien amdricain prdtend, en eflet L- 
quo sa lumidre rdalisera prdcisdment uno 
dconomie d’environ un tiers sur la gaz 
Nous rdpdtons, pour qu’il n’y ait.pas de 
malentendu, que ces dvaluations Sont 
approximatives; toute estimation prdciso 
est pdeessairement lido aux conditions 
particnUdres de la oanalisation et de I’ox- 
ploitation. II va de soi que, a’il fallait 
prolonger de plnsieurs kilomdtres la ca- 
nalisalion pour desservir quelques dou- 
zames de lampes, les prix gdndraux do- 
vraient monter en consdquence. Quoi 
qua en soit, mflme 4 prix dgal, le 
nouvel dclairage prdsenle tant d’avanta- 
ges sur le systdme actuel, qu’il n’est pas 
doutesx que son emploi ne se gdndralisd 
4 bref ddlai dans les grandos villes et 
dans les maisons. 

Nous avons beaueoup insistd sur Id 
By8tdne Edison parce qu’il nous parait di' 
nature 4 amener 4 bref ddlai une verita¬ 
ble rdrolulion dans nos proeddds d’dclai- 
rage. 1 _ 

Le:az a did expdrimentd 4 Paris pour ” 
la prmidre fois ep 1818 au passage dei 
Panoimas sous l’administration de M. dd 
Chabil. L’introduolion en France de l’di 
clairae par incandescence datera de li 
premre Exposition inlernationale d'd-i 

, IIenbi be Parville. 

renfcrmo los nppnrcils dils faclcurs ilectri- 
qttes, pormoltaiil A lout locnlairo d'un im- 
nioulilo d'Atro nverli, immAdintomenl nprAs 
<l u »«« H AtA disposAu dims In hollo dosliiiAoA 
col usngo, do I’nrriVAo do so correspondence. 
Us trots nntrcs cntAgorics compronnonl los 
sppnreds dlls i/mclich tie stl retd, nynnl pour 
otijol In protection do 1 'nnpnrlorncnl mfinio 
coulro les incursions mnl intontionnAes; In 
Wirro do sArolA, ot cnfln los annnerics ot 
monio lo canona'alarmc, 8 iiivnnt<|im rimin'- 
tnlion csl siluAo dnns un qunrljer lYAquflnlA. 
on ii lino dislnnco npprAcinhlo As liiiliiiiiiiiins 
yoismoi. Los nppiiriiils nvoWissours at nro- 
locleurs do M. Monlclnr nous out somblA 
roinplircoinplAloineiit/o Inn indiquA, ot o’csl 
A co thro ipio nous lo> dAorivons uu dAtiiil. 

. \.'■•'OTIUIK ItuxTitimiK-II CR1 Mrosnuo 

inutile ilu signaler los immbroux rot'nV 
•oiivonl trAs prAjuilicmlilos mu nlTairos sii ’ 
Inns'll!Jf C0,,r l ril ; rs ro ." ,iN I'dr los fnct’ours 

) Ipix sn porta closo, posor so burro i 133. iHj 
W.IIIKit canon ii’alaiimb — Deux e "«ffr, 

s n .„r; r n 'oalaumb — ueux 
ens soul A prflvlir.on cnsdosocours, suivnnt 
nuo n innison HprAsorvorostsitiiAodnnsuno 
tocnlita habit£o[ ou dans un ondroit isolA 
Duns lo p renter ens, M. Monlclnr Atablit 
uniis les logis In ou plusioitrs boutons Aloc- 
I rallies comminiqunnt A nutnnt dosonnorios 
<1 nlnrino dispisAcs die/, los concierges ot 
duns los np|»rtsinontB voisins. 

■ Dnns la oisd'uno linliitntion AloignAe, M. 
.Monlclnr jiislnllo un petit canon d'nlnrme 
iivoriissour, ilont In dAlonntion osl com- 
iimndAu pnr lo jou d'nn bouton corrcsponilnnt 
n un itlliimoir Alectriquo placA nil-dossils du 
ennon. Pour indirjitor dnns (|iiollo dirociion 
lo canon convorlissour n AtA tirA, il s'llfll do 
ponssor un nutro boiitun pour nllmnor, si 
0 cst In nun, uu fiiiml on vorro instnllo sur 
lo 1011 on dovnnl los fonAlros do In urnison, 
ot sur los qimlro oitAs diii|Uol ost Acrit on 

Cliemins de fer ot Tramways. 

distancec consid6rabios. 


is. With. Disposilir* 1 
appllqucr °ux soups, 
pour rndlitor lour neliot 

Instrument do PrAcision. 

'o dis,"vr r'°'" u 'omntivo do 
, S f r ° r " ,u 1,1 • fuclour 
• um l u ?‘ pom (itro joint un aver- 
i| 0 conci° ^ ac ^°* t * an8 l' 1 logo, ct 

oinjiltto. Nous no snurions 
lunr ulugo qti'en ro prod 11 Until 
listoro dot* Posies ot 1616 - 
: u M. Monlclnryu'iV opplau - 

I d'oiler visitor rintullution mill 
elvctrtrjttc, (los michetn ot barr 

«u movon do In 11 . n tal,, enu <|tti 9 

privieiit a tout inoj Se,,C i° * cs l° UrefJ H ou S, 
suite les visiton™ l » 1 , co »ciorgo ot par 
K ou absent S di *,!!! 1 0ca,lliro 081 Peseta 
Kttctour avert ?, hon a Ppartemo»t. 
assurent dom» 'f scnrot tableau do pr 6 «onco 
r 'SBi,luritA dos C o ;"fc ,0 ;' , . 0t ^. romQnt . •* 

S* Guic.ikts ni sun, ,' 03 V,s ", es ' . 

diets (111 surol 6 n Loa .««■- 

ayec les person, 7 : nt ! 10 commuimjuep 
ait b lour ouvri • !° S 6tra %; 6rcs sans qiVon 
done uno oxenllonii* 0 ^ 0 / Ut?s . “Pparoils sont 
Visiles do jour ou do nmt°n U,IOII i c0lll ‘' 0 lo « 
com posies do nbisini, n U ! ‘ Dn " 8 03 '"“'sons 
clur plnco ses^guichom 'sTn? M °"'- 

<lo cheque logoinon • Hnn i de . 8 I ,0rlcs 
enmpngno, sur ,n ^ JZJouT2 ft 

d 4 ^Ppow.Xmon^ <Ie 

mAtnl dit j'ua'as 1 B 0 sA h ? t |. <1 ’ Ob80Pvolion on 
dnns lo pannoau siipAriour 1 di OU | 1 ’ <1 ’ llon,mo . 


cartes ot papiqpg: - ocov ou los lottros, 

(nKfens lo pnnuonu 
los paquots on obiots a„ni ttnl< ^° rocovoir 

i poui umuquor d otro mlo|»t 6 par tons coi 


I jinny. L'orrectionmjir 

nouvonu coiiiposA dit : Ucriin 


Arquonueono , 

55.870 15 aus. SoiilAtu induslrldll 


Ln situation dos mnroliAs sidAniroint 
ost sntisfnisunto ot pnrtout les nrix “esu 


.. A .. •.iviotlffios ftyftflW6uvff.Ia r -inbrF6’u'.' , ro(:uq 

OtV'ioA'ji des blossuros dan's lbs.explosions, les| 
T-TR O ATTOTTTT incondios,. les asphyxies>qu’il a d<5lbr- . 

UXinuiNiyUJi mindos; quo sorait-co oncoro s’ilnous; 

—— > elftit pormis d’ profondd- - . 

• imont les consdqiionces do soncmploi, 

I La LUIIIICID ClCdrillliC Cl la LllllllCi'C (III da! ;dans nos ntoliors; non pas com: nouvol-: 

ilomont conslrulls on .raso c»mpagno,'j 
. V 1 1 Ja . i ! i i l ; om ' , ,W 01, ( I 110 1 ospo- aveo do larges fentires et imo hauteur 
' ? ,i ^ ootrlcild ■ mellnil on dvidonco In do plarond convonablo. ranis dans coux 
'SS? 8 * i » P|', ocll , a * no l *° la Uimiuro'do l'intdriour do Pans, oft lo lorrnin, 
’n!2Si!i2 u « A uo 0 gaz> Jusrifi’ft 1'ox- cofttant choicest disputd piod ft plod; oft 
I’no mln'V, on < P p llv /} d “Mcovoir dps dou- los maohincs, lcs outils sont onlassds 
nn S J *Vnn a ii 8 11 d !l! le P!"' clllc SU P- *os uns sur los nutros ; oft los plafonds 
m°A • , • 6l ' c dleotnqne no so sont lias; oft lo jour est si rare qu'oii cat 

Paoesfo^U^ppfiqu'u^dims SS,‘S Susotr? 0 t0 " r ‘° 6 “ allum ' 5 <fu maliu 

g o niI °® 11 5’,’« li ilos niilliors d’ouvrlorsct 
dafonUi’eau^nun^in , ' |10 '' fec,10 l n ? ,}' 0 "- d ouvrlftros qui s’dtiolont ft rospiror un 
es cliSS Wsitan-air Yield par los dominations earboni- 

3?r matfftro ( l llos du saz ‘ , N , on seulcn 'enl Pair y cst 

io n d'ftiro d t im mn nIf ni 1 , olm 11,ai '0' fonoonlrd, dans un dlatpormn- 
Wbs mieux er’rcct onn& \, «i ‘‘IT 8 " ont lle moilei,r - mais lo G«z y brftlo 
djjtnnirmn,i.!^ »?»:;prcscpi0 conslammont, achovnnt docon-’ 

Mhu’ii nas lirs h nil i 10 l P n ‘« l »«i-fl Bumor lo minimum d’oxvgftno qui s’y 
Mdlolgnd™ < iiolqids gioliosfaisnionMV 8 i 1 ' 011 ' 0 pol,r alin , lcnt01 ' la respiration 
flkemont Jl’ino Oo d’hoto j’mi ,nf d -f, p01 ' 3011n °s<1«‘ X trava Wont. Et l’on 
Viovard nouvolloincnt c -od ’d'i n m „ s , <5lonno t 0 ,') voyant sortlr «Jhilc|uo solr 
W |ul)liqiio; mais co n’dtaTl l^iuft usaLo d v ces . atell0rs «no armdo d’onvriors ct 
■ lassagor, qu’on s’olTrnit column' . *1 ouvrrferos, quo beaucoup ont los pau- 
f 6a liunidro dloclriquo pas nouM ,ir ^ la figure maigro ct pale, 

F f 10 d’organos la rondanl vdrifablomoni LtR 0 ! , 1 '-^ 011 |! el ?° «ovejonpdc, lcs mom- 
aipdriouro, tantsous lo rannort do 1Y™ Bjclos. Il non pout fttro aulromont 
r&mio quo do la commoditd ft lous iM' Ceponda ”^ avco los conditions hygidni- 
aftres syslftmos-d-dclalrago’ a ques 1cm- K ont imposdes, otquol'u- 

E( 0 no pouvait prdtondro'encoi'fl ft r,. n a «° , du S a? ' acliftvo do porvortir quand 
substituorcomplftfcment ft oux^quel- l; ? lld p ^2, to V t h • lnit mol 'tolles. \ 

ques ateliers do grande industr 0 nour- i,ra S , ul “ l1 P°. ss| blo do suivro los progrfts 
vus d’uneforco molricosffi cet ompoisonnoracnt lent dans los • 

(aliaiont quolques foyers ft arc volla?. S rou P M purnors, quo do viclimcs 11’y 
que, los industries oft lo travail os ,1. c prapterait-on pas, quaral i’ftgo arrive i 
vise, ou 1 organisation dos ateliers des £ m?- uo 1 08 a r l£,l ' os ot t° s voinds n’ont ft 
cbantiors, nocossito lo raorcellomont do V0 ] llcu i 01 ' I 11 l >n sang bruld ottappauvri! 

1 usine, rostnient dclairds ft laTmiftrn' Lo . gn ? ontl ' e pour uno large part dans , 
Aplus forlp raison ia lmni6ro S? r ? su serontbion vUomodi- : 
^ctnque no pourait-oilopOndtror dnnv“ 8 ^ lumi6ro Olcctriquo ]ni ■ 

Iftraw’RmnnTf nl8,0ft noi,s Elionsvouds 3“™4 ld 8U , 1bs t ltai! P- Cos inconvdnicnts 
p -• ulaonsos ! ‘ t’builo, au pd- „ s< ? nt Sl , dvidonts quo. dans los : 
ni? e ’, a 1 essence, otr ft nos h a ',Mi~ P „ , ale,10I 's du conlre do Paris on dos jour- 

ij^MceSCcImS^Sco'ft'Jiw iI™niium™lli“fijn?l‘ ■ 

ques ateliers do d 
vus d’une force ] 
taUaient quolque; 
que, les Industrie 
vis<5, ou ror^anisi 


spnt cSbdamnds ft reapirerftdbsqSitiahii-j . 
tlons carboniques au moins trois ou 
quatro houros par jour. , ' | 

. Lalumidro dloctriqub,' dont.los dtl- 
couvertos do M. Edison ont rendu 1’ap- 
plication possible, va done. anidlioror 
profonddmenl l'liygiuno de cosmilioux,; 
en mOmo tomps.qu’ollo facilitora lo trad 
val dos ouyriors, puisqu’ollo no raodine 
nullement los couleurs.. ., .{! 

I Oft elle sera nccuoillio aussi aveo'onK 
pressemont, c'osttdans les .dtabilssot 
ments publics : thdfttres, oafds, corclos,' 
Restaurants, partout oil lo gas, outre ses 
mconvdnionts hygidniques, cst un did- 1 ' 
mont permanent do destruction. On salt 
aveo quol luxo toutes: los salios publi-i 
ques sont ddcordos. Elios luttont do ri-; 
oliesso, d ! dldganoo, potirrondro lour sd- 
jour plus agrdablo. Nos artistes poin- 
tros, sculpteurs ot. ornemanistes„met- 
xont lour fmaglnaiJon ft rdeuvro pour re- 
couvrir les pnnnemix, les frises,.los nIa- 
fonds d’un mondo fantastique otgra* 
cioux, y onlagant. dos chimdres, dos 
foilillageo, dos alldgories,- y faisant riro 
dos feramos dand deo-fordts d’acanUroaft 
ou bondir dos chevaus nu miliuUidosi 
nudos. Quand ils ontemportdlourdob'd]-; 

)e, cello du poseur'd’apparoils ft gaz‘ 
prend la placoj- ot-blcntut les lustrosy 
suspondent lours, .dldgnnlos. nerviirds 
dans los scintillomonts des criBtauxdes, 
suspensions,-'los. appliquos y ddrouiojit 
lours courbosplos globes dupoUay prop-: 
nent lour vaguo ressomblance'd’enor*; 
mps perlos faussbs.- L'ooil est satis- 
fait; ces apparoils coinplfttont l’liar- 
momo du ddcor do la salle; ils la 
moublpnt, ils la pouplont. La voila, 
scion lo ens, d’uno riclieBso coquolto, 
pnnpanlo ou sdvbro. Quelquo tomps 
upres. quand los llummes du gaz ont ao-’ 
comnn lour couvro destructrlce, les pla- 
fonua sont noircis; chaquo bee a marquii 
sa place sur los dorures, los blancs sont 
doyenus jaunos ; los poinlures' ft l'huilo 
ont neu ft pou disparu, ct il arrive, coin- 1 . 
mo ft lOpdra, quo des chofs-d’oouvre so 
sont dvanouis en fumdo.’Dans co dernlor 
cas, lo malhour osl irrdparable.Dansles 
aulros .cas, e’est en ronouvolnnt souvent 
los memos ddpenses dordparation qu’on 
pout entretonir l’iinmouble on bon dtat. 
Nous no voulons pas parlor ici- des- on'-; 
nuls imposds aux personnosqul frdqubn- 
lent les dtablissemonts publics dclairds 
au gaz, pn pourrait nous accuser do ,s,y- 
liaritisme; .Disons soulement quo; pen-' 
dantl dtd. U los rend inabordablos,'lot 
pendant l’liivor souvent.inhabitablos. ; 

; Lotto sdne d mconvdnionts est encore 
a Preldo ft disparnltro par l’application 1 
gdndralo du systdino dVcIairage Edison.’ 
Lost aussLau savant Amdricain'>qud 
nous dovron8 do voir los dangors 5 d’ox- 
P osion.simprlmds.; S’ll so prodult. des 
mi tes d’dleotrioitd, olios orit edei do bon 
queues no ddgagont nuouno mauvaiso 
' odour ot qu’on pent bn approohoruno 
cnandello sans cralnto .do voir la. con- 1 
cluito vous sauter au visago, ' . ‘ 

Quant a nos. appftrtemonts,,parlicu-l 
liprs.- dans losqublsle gftz n’a pn.’phcbrb 

i a Aivanco rdsolup. L’huilo, la soldinoj lo ; 

• spptrolo. labougio, ottoutos los hullesot 
Simi e8 , ossel M°,? :0at m tr °P souvent 
'remiS 8 c ' Q mall!c iictlons pour quo nous 
la POino d dnumdror fours in- 





Journal bebdomadalro public par 

L0fB.ce General de l!Industrie et du Commerce 

Prix du NumAro : 35 centimes 





)ans un journal dcstind spdcialemcnt commc 
lOtrc i vulgariscr les applications usucllcs dc 
cclricitd, la place d’honncur rcvcnait dc droit 
minislrc dc nos tdldgraphcs, au president du 
igrcs international des dlcctricicns, au erda- 
r dc ccttc Exposition qui, par scs splendours 
ics bienfaits, laisscra dans lout’es les mdmoircs 
souvenir impdrissablc. D’autres titres encore 
ommandaient it nos premiers hontmages 
imme Eminent dont nous allons rctracer la 
orieuse ct si utile existence. Entiiircment 
rouds aux intdrets populaires, nous no pou- 
ms, en cITet, oubliar ni mdeonnaitre les services 
idus par I'honorablc 11. Cochcryitlacausedc la 
mocratic. Champions obscurs ntais sinceres du 
ogres, nous avons su apprecicr la valour des 
'ormes proposdes par l’ancien rapporteur gd- 
ral du budget, ct I'importancc des ameliorations 
discos par le ministre. llais des circonslances 
prdvucs nous ont forces d’ajourner le tdmoi- 
age de haute estime ct de profonde gratitude 

e nous eommes heureux de donner ici 
'un dcs plus fervents ct des plus dignesservi- 
irs dc I’idec republicainc. Notre satisfaction a 
us acquitlcr dc ce quo nous considerons 
mmc unc dette dc conscience cst d'aulant plus 
>'c, que 11. Cochcry appartient, lui aussi, a la 
alangc dcs luttcurs dcq8—dedaignes pour la 
apart ct commc proscrits dans ccttc rcpubliquc 
I'ddification dc laqucllc ils ont fait taut dc sa- 
iliccs: - arrive au pouvoir, il a lui, du mains. 

quelle le ministre dcs postes cl Wlcgraphes 
^severance apoursuivre dans ravcnTr’l'acc'lm 

issement dcs innovations liberates dont ilapri 

nitiativc. 1 

II. Cochcry cst, sans contrcdil, le plus sym . 
rtique ct le moins critique des membres d . 
luvcrncmcnt. D’unc bicnvcillancc vraimentpa 
rnclle envers les employds dc sa vastc adm' 
“.ratio"! soucic ^ dcs iaterets publics, e' 

ujours pret h accueillir avee bonne grdee i e , 

clamations legitimes; sans ccssc en qudt ede ; 
odifications propres a facilitcr le service ct i 
ocurcr au commerce de nouveaux avanlm-V 
innaissanl a fond les questions deonomique- c i 
es versd dans la pratique des affaires, fJL 
ent abordable ct sans morgue aucune, ,\[ r' 
lery ofTro le type, malhoureusement iron V™" 

f *J 5 d pBou h r° 

noire ministre ocs posies ct teicgraphcs. bn 
quclqucs hcurcs, il rdussit it faire confcctionner 
soixantc millc ratioss, dont la distribution, on sc 
I'imaginc, ful accueillie avee dcs transports 

Les journdcs de juin ayint provoqud dcs 
changcmcnts dans le personnel gouvcrncmcntal, 
Cochcry abandonna le ministere dc la justice ct 
revint prendre sa place au barreau, ntalgrd les 
olTrcs brillantcs qui liti dtaient faites ct les solli- 
cilalions dc protcctcurs puissants pour le lancer 
soit dans la ntagislraturc, soil dn»s l’adminis- 
tration. Hits ce moment, le futur ministre com- 
mcn ? a In lultc qu’il acontinude avee persdvdrance 
ct un ddvoftment it toute dpreuve, sous la presi- 
dence ct pendant la rlurdc de I'empire, pour le 
triomphe dcs iddes dentocraliqucs. II s'adonna 
spdcialemcnt aux proces politiques et ddfendit 
avee aulant de talent que dc courage un grand 
nombre dc journaux ct notamment la Vni.v du 
pcujtlc cl la lUfonuc contrc Icsqucllcs raulorite 
excrejait les plus violentcs persecutions. 

A partir de 1856, Cochcry, qui comprenait 
que, dans la situation presente, la plume scrait 
plus cfhcace que la parole, sc voua presque 
cxclusi'vcment au journalismc militant, ct lors- 
que, en 1S08, u l'cssai loyal » dc I’empire cons- 
titutionncl et liberal reldch. les liens clans 
lesqucls la presse avail etc enserrde jusqtic lit, il 
prohta dc l'occasion pour fonder I’lnih! head wee 
de Monhrgis dont il cut fait bientOt un des 
mcillcurs organcs dc imposition parmi le jour- 
nahsme dc province. Son ardcur ct son habilcte 

cl'imT^tioi d tn r o Cn ra" nC ,!ra " <IC populari,,i * 

SCS genereux cITorts en I'cnvoyant a la Chambre 

des SrT’ aU u clc , ctl0n! ' dc ma i 'S69, en depit 
■ auaqucs acharnces dc I’administration impe- 
trousscs deux candida-’lc. 1 . 

a .*.•‘ta'Chambre.le nouveau depute 

P t unc P a , rl actlvc ow-’f discussions d'alTaircs, 
et, bicn quappartenant aux rangs dc 1'opposi- 

bujrr,* 1 fit T' 0 dC la commission du 

budget, ou il donna dc nombrcuscs preuves de 
ses remarquablcs aptitudes. 

de L r o d , C 8 S 7 d °r 0l 's CUX ? inStruc,ifs ^^nemen.s 
de 1870-1871, Cochcry fut envoye en quality dc 

~ n rd dC , laddfCnSCna,i0nalc da " s «=dd- 

partement du Loiret, ct l'invasion prussienne 
layant contraint d’abandonner son postc il 
Sr 8 ™'' ' , VcrSaill<!S Thiers dins 
1 inutile voyage qu il entreprenait pour arriver it 
dcs ndgociations pacifiqucs. 

Aux dlcctions du 8 fdvricr, Cochcry arrival!'le' 
avc ? soixantc mille voix sur 

pnrtemitnt’ rcs'td' fidile^sq^bpu d r s ond :dl! " ■ 

nLc.^U^^a 0 cetfd" 1 '" 1, A 1 ' Asse , mbld = -«“£ 

assidue des questions d’aSs. Membr'Tcojr 
i 1 'll 1 dteTchoisi^ti ‘piusicu^s C< ronr! 

impdts, la Chantre rdduisaitdc 7 millions pour 
I’anniic 1877 It taxc du scl qu'il appclait « un 
imp6t traditiomeilcment impopulairc ». || C s- 
quissait en mdne temps les grands trails d’une 
situation ou d’ltie politique qui allait pcrmctlrc 
dc larges ddg.nvemcnts. Les incrtidulcs d’alors 
doivent s’inclircr aujourd’hui en presence des 
ddgriivcments cuj ont did rdalisds ct que, dans 
sa sagacitd ct sijprdvoyancc, Cochcry annomjnit 
depuis plus dc ill ans. La commission du bud¬ 
get dc’ 1878 le ihoisit encore comme rapporteur 
gdndral, ct c'cibcn cettc qualile qu'il refuse le 
vote du budget,au nom de la commission, aux 
applnudisscmcns de la Chambre ct du pays. 

Rapporteur gindral dcs budgets de 1877 et dc 
1878, president <c deux grandcs commissions dc 
chemins cl dc It {commission parlcmenlaire qui 
s'est occtipec di I'Exposition univcrscllc, mem- 
bre din par la (hambre du conscil dc surveil¬ 
lance de la Caine dcs depots ct consignations, 
II. Cochcry s'dtn't placd rtu premier rang des Ira- 

Nous nc poirons ici dnumdrer tous ses rap¬ 
ports. II est totitifois intdressant de rappelerque, 
deslc 1" trimestre de 187b, s'expliqunnt dans un 
rapport sur le ppjet du gouvcrncnient de revenir 
aux anciennes lares poslales de vingt centimes, 
il proposait a In Chambre de frapper de plus 
grands coups cl d'adoptcr la luxe uniforme dc 
<iuinxe centimes. Kn mime temps, il reelamait 
au sein de la commission du budget la reduction 

trcf.iilcs qii’arr-ivirenl'le Jo Mai el ia !li<solulion 
<le r.Assemblee. I'.ien entemI11. il -ign.i le m.uii- les bureaux des groupcs republieaiiis. 

I'endant la pdriode dlector.ile, Al. Cochcry, 
reprdsentant dc rarrondissement habile par le 
marechal dc Mac-Mahon, so iroava en butte aux 
indmes proeddds qui avaient etc employes contrc 
lui en 1869. Mnis toutes les menaces tie I'Admi- 
nistralion no purcnl intimidcr ni tromper scs 
conciloycns. Son concurrent dehoua piteusement. 

Nous Icrmincrons dans noire procliain numero 
ccttc elude dc la vie parlcmenlaire si bicn occu- 
pdc, commc on en pent jugcr, dc I’honorablc 
ministre dcs postes el tdldgraphcs. 


us u v n n 


Dans le numdro precedent, nous avons racontd 
ia vie d'Edison. Pcul-etrc aura-t-on trouvd que 
nous nous altardions avee un peu trop dc com¬ 
plaisance dans ce rdcit dcs faits mdmorablcs i 
divers titres qui jalonncnt la carriere du jcuiic 
inventcur? Que dc ddnik diirnes d'intdrdl. nour- 

aux minces incidents d’uno ciisjcnce aussi lar- 
gement rcmplic, ct qu’il aimernit 4 envisager 
sous toutes ses faces ce frolilairc, non parvenu 
encore 4 la maturitd de rage, quia ddj4 accompli 

c gigantesque 
pdlir bientflt les rcnommccs les pj 
Et puis,on lccomprcndra,nous 
plus de peine 4 nous sdparcr de 
que la sympathie pour I’hommcj 
mdme temps que l'admirationj 
4 chaquc pas dans ccttc double i 
individualitds les plus origin; 

la gloirc fera 
|avions d’autant 

'accroissait cn 
jpour le savant 

Stude d’ 

t les plus 

puissantes des temps modcrncs.Rarcmcnt “ l’ac- 
cord d’un beau talent et d’un I cau caracttre ’’ 
s’est rencontre aussi parfait; et, aprds avoir vu 
Edison tel qu'il cst rdcllcmcnt, aimabic, bicn- 
veillant, toujours accessible 4 taus, gdndrcux et 
ddvoud 4 l’cxcds, brave jusqu'itla folic, insou¬ 
ciant de la riehesse ct de la gloitje, sans la plus 
ldgirc dose de vanitd ou de jalousie, cn un mot, 
si simple 4 la fois ct si grand! il nous a d 16 
difficile, nous l'avouons, de coiitcnir l’dmotion 
dont notre cceur dtait rempli ct que nous scrions 
heureux de communiqucr 4 tors ccux qui nc 
connaissent encore que l'invci cur de gdnic. 
Mais il cst temps d’examincr on oeuvre, au 
frontispicc duquel on pourrait gi iver : * Le vrai 


Jamais le vers de Boilcau n’: urait 616 mieux 
cn situation. 

Par unc coincidence asscz bizarre, Edison, cc 
missionnairc du progres, desti 6 4 provoquer 
d’abord tant de protestations c de ddfianccs, 
a etc placd 4 sa naissance sons le patronage 
du saint ap 6 trc de I’incrcdulitd: Vide Thomas, 
vide talus, etc. A la nouvcllc de chacunc de ses 
ddeouvertes, il semblc, cn cITct, que Ton 6 coutc 
un contc imagind pour dmcrvcillcr des enfants. 

En pouvait-il ctre autrement, ct notre cx- 
Irain-boy cspcrait-il dchapper 4 la loi com¬ 
mune) Le bond immense que l’apparition du 
phonographe faisait faire a la science, sans 
avertissement, 4 l’improvislc, nc dcvait-il pas 
frapper de surprise et ddsarqonncr, pour ainsi 
dire, jusqu'4 ses adeptes le mieux prepares) 
Aujourd’hui memo qu’il cst loisible au premier 
venu de “ meltre le doigt dans la plaic" et de 
mesurer avee une certitude mathdmatique l'ctcn- 
due des rdsullats acquis, nombre de gens sus- 
pcctcnt encore le tdmoignage de Icurs sens ct 
s’insurgent d’avance contrc la r 6 alit 6 d’inventions 
annoncdcs ct dont l’application tombera domain 
dans le domaine public. 

Qu'on ne sc h4tc pas de nous accuser d’ex- 
clusivisme ct de parti-pris. Si nous cxaltons 
Edison ct si nous le plaqons 4 la t 6 te des physi- 
ciens de l'dpoquc, nous ne mdconnaissons pas 
pour cola l'importance des travaux de ses con¬ 
currents, et la suite de ’ccttc publication prou- 
vera 4 l’dvidcncc quo nous n'h 6 sitons pas- 4 
signaler les services rendus ct 4 d 6 cerner au 
mdritc, partout 06 il se trouve, le Idgitimc hom- 
mage qui lui cst do. Cortes, les inventions 
grandiose ou ingdnieuses abondent 4 PExposi- 
tion des Champs-Iilysdcs, ct l’on y rencontre 
unc foule d'objets d’unc utilitd pratique incon¬ 
testable. Les adaptations de l' 6 lcctricit 6 comme 
agent de force et de lumicre, les nombreux sys- 
tfcmes de t 6 l 6 graphic, notamment, vaudront 4 
Icurs auteurs de chaleurcux 61ogcs et de 16gitimcs 

Sur cc terrain, Edison a des rivaux dignes de 
la plus grande considdration; mais ce qui le dis¬ 
tingue ctlc dasse hors de pair, c’cstlct616phone, 
l’61ectro-motographc ct par dcssus tout, le 
phonographe. L4, il cst original, incomparable, 
unique. Dans cette voic, il n’a ni prd- 
curseurs, ni imitatcurs, ni ptosdlylcs. C’cst une 

vdritablc r6v61ation. Devant les prodiges de cet I 
instrument fantastique, auprds desquels tous les 
miracles des thaumaturges ne sont que niaisc- 
rics et jeux d'dcolicr, l'csprit reste comme dpou- 
vantd. On en arrive presque 4 croire aux 11 pa¬ 
roles gcldcs en Pair” de Rabelais ct 4 la rdali- 
salion de l'hypothisc physiologique de Balzac 
considdrant la pensde comme un fluidc qui sc 
projetait au dehors ct que l'on pourrait saisir 
sur la physionomic comme le daguerrdotype 
saisit dans l'cspace le spectre Iumineux des 
corps. Avee unc organisation aussi extraordi¬ 
naire que ccllc d’Edison, ricn ne semble plus im¬ 

II faudrait un gros volume pour contenir l’d- 
numdration do toutes. les inventions dont nous 
cssayons de racontcr l'histoirc. La sculc liste dcs 
brevets qu'il a pris, ct il cn prend chaquc jour 
de nouveaux, occupcrait plusicurs eolonnes de 
cc journal. On a vu, dans notre premier article, 
qu'il cn comptait-trcntc huit pour les pcrfcction- 
ncments npportds par lui au systdme Morse 
sculcmcnt. Ses brevets rclatifs aux tcldgraphcs 
automatiques ct chimiques sont maintenant au 
nombre de trentc-cinq, ct il cn a huit pour ses 
systdmes duplex, quadruplex ct multiplex dont 
nous avons ddj4 dit quelqucs mots ct qui fonc- 
tionnent au Palais de l’lndustrie ou ils partagent 
[’admiration gdndralc avee le tdlcphonc, le pho¬ 
nographe, l’dlcctro-motographe ct la plume 
dlcctriquc dont l’usagc s’est generahsd dcpuis 
PExposition Univcrscllc do 1878 . 

Nous nc nous arrdterons pas au tdldphonc, 
rdpandu partout cn Amdrique ainsi que l'dlcctro- 
motographe, et qui va rcccvoir prochaincmcnt 
cn France la plus large application, ct nous 
allons indiquer cn quoi consistc ce mcrvcillcux 
phonographe, qui, unc fois pcrfcctionnd, cst 
appcld a joucr un rdlc considerable. C’cst un 
simple disque vibrant, muni d’unc pointc 
mdlallique qui trace sur unc fcuille d’i 
adaptdc 4 un rouleau qu’on fait tourncr soit 
la main, soit par un mouvement d’horlogcric, 
unc sdrie de points reprdsentant cxactcmcnt les 
vibrations du disque, sous l’imprcssion de le 
parole humainc. Lorsqu’on a ccssd de parlor, on 
replace le rouleau 4 son point de ddpart, ct on 
le fait tourncr de nouveau. La pointe mdtalliquc 
repasse par la sdrie des points qu’cllc a crcusds 
dans la fcuille d'dtain, le disque subit des vibi 
tions identiques aux premieres ct reproduit m 
unc exactitude mathdmatique les sons qu’i 
enregistrds. L’elfet de la premitre experience 4 
Inquclle on assiste cst vraiment indcscriptible, 
et c’cst 4 faire doutcr si l’on n’est pas dupe de 
quclquc cnchantcmcnt. Devine-t-on les conse¬ 
quences de cette mcrvcilleusc invention, alors 
qu’il sera permis d’expddier 4 des milliers de 
licues, non plus unc lettre ordinaire, mais une 
fcuille d’dtain portant 4 l’abscnt la parole vivante 

des dtres qui lui sont chers) 

Avee la plume dlcctriquc, employde dcpuis 
quclquc temps ddj4 dans plusicurs grandcs ad¬ 
ministrations de Paris pour les circulaircs, un 
dcssin, une page de musique, unc lettre dcritc 
sur du papier blanc peuvent dtre reportds si 
une pierre lithographique et tirds 4 un nombre ii 
fini d’excmplaires. 

Quant au tdldphonc ct 4 l'dlcctro-motographc, 
leur succts pratique cst assurd ddsormais. Les 
cxpdricnccs faites rdeemment par la Socidtd des 
tdldpboncs-Edison, de 1’Avenue de l’Opdra, dans 
les bureaux du ministtre dcs postcs.ct tdldgra- 
phc= ct dans plusicurs gares de chemins de for 
ontdtd ddcisives. On a correspondu de Paris 4 
Rouen, c'cst-4-dire 4 unc distance de cent 
quarantc kilomttres, ct bicn qu’4 cette distance 

„ 1 Pf“ c°nfus, la conversation 

dtait possible Jusqu 4 quatre-vingt kilometres 
les communications sont parfaitement net es' 
resultat que l’on n’obticnt me \ ' ’ ’ 

lcs “Wpliones magndto-dlcctriqucs. U litd- 
ld ph °nc d Edison qui n’cxigc que l’cmploi de 
deux didments Fuller a donnd dcs rdsultats bicn 
supdneurs, quoique l’essai ait did fait dans des 
cond.Uons ddfavorablcs. N’est-ce pas incroyable 
qu avee un disque 4 pouvoir enfermer dans la • 
main et placd 4 son Oreille, on puisse entendre 
a voix d une personne dloigndc de plus de vingt 
licues, comme si l’on so trouvait cn sa prdsenec. 

Qa n est pas tout, ccpendant. Grice 4 l’dlcctro- 
motographc, le correspondant vous rdpond 4 
haute et intelligible voix dans le lieu mdme d’o4 
vous l'interrogez. 

Le petit appareil qui restitue aux vibrations 
transmises par l'clcctricitd l’amplitudo- qu’cllcs 
avaient au ddpart, est basd sur une ddcouverte 
qui recevra des applications varides dans l’in- ’ 
dustrie. Le premier, Edison a constatd que lors¬ 
qu’on fait passer uncourant dlcctriquc dans deux 
corps qui frottent l’un sur i’autrc, ce courant 
agit 4 la fai;on d’un corps gras et annulc presque 
le frottement. Ainsi, cn remplai;ant les huiles de 
graissage par dcs cou rants dlcctriqucs dans les 
machines lourdes ou a mouvement rapide, on 
dviterait unc notable ddperdilion de force, moins 
d'usurc ct un travail plus rdgulicr. 

N'oublions pas de faire remarquer qu’avcc le 
tdldphonc les communications sont bien plus 
rapidcs et compldtes qu’avcc le tdldgraphc. 

Edison a commencd il y a ddj4 longtcmps, ct il 
poursuit avee son opinidtretd indbranlablc, unc 
sdrie d’cxpdricnccs du plus haut intdrdt sur le 
son. 11 prdtend le ddeomposer comme on a dd- 
composd la lumiirc et ddcouvrir ses bases 
constitutivcs. C’cst ainsi qu'il a construit l’adro- 
phone qui grossit deux cent cinquantc fois la 
x humainc. L’instrument consistc cn unc em¬ 
bouchure scmblablc a cello du telephone ou du 
phonographe, ct le disque vibrant fait joucr la 
: d’unc trompette qui reproduit cn l’ampli- 
le son de la voix. 11 a trouvd dgalcment le 
mdgaphone, formd d'un porlc-voix ct de deux 
cornets acoustiqucs, au moycn duquel on cor¬ 
respond en parlant 4 voix basse 4 plusicurs kilo- 
:s de distance. Il sc propose d’associer le 
tdldphonc qui transmettra la parole, le phono¬ 
graphe qui l’cnregistrera et l’acrophone qui la 
fera entendre au public. 

lous restc,4 parlor, pour nous cn tenir aux 
inventions principales d'Edison, du progres im¬ 
mense qu'il a fait faire 4 l’dlcctricitd, au point de 
vuc si important de l’ddairagc. Il a rdussi d'a- 
bord 4 distribuer un courant dlcctriquc comme 
ccla a lieu pour unc colonne de gaz. Jusque- 
14, Ja xtdperdition dtait telle que cc qui rcs- 
tajjjUc valait pas la peine d’etre utilisd. Cette 
ddCou-rirtc tend 4 appliqucrla lumidro dlcctriquc 
aux usages dumestiques. Le plan de la nouvcllc 
lampc imaginde par Edison est d’une extrdme 
simplicitd. Un petit globe do verre dans lcqucl 
le vide cst opdrd, deux filsdc piatino ct une tige 
de charbon deTamboo recourbde cn forme de fer 
4 cheval, voitd tout. Le gdndrateur de 1'dlectri- 
citd est aussi simple que celui du gaz, les fils de 
distribution plus maniables que les conduitcs du 
gazet d'uneinstallation moins incommode.La lu- 
mitre produite cst aussi blanche et brillantc que 
ccllc du meillcur gaz. EIlc cst cnfcrmdc, et fixe, 

. par consdqucnt, ne donne pas de chaleur, nc 
ddveloppc aucun gaz nuisiblc et coOtc moins chcr 
que le gaz d’dclairagc. Par lamcthode d’Edison, 
plusicurs foyers de lumicre peuvent dtre alimentds 
par le mdme fill. Chacun d’eux cst inddpendant ct 

i 6 ou (Stcint sans influence sur 
VoilA bien des nvantages, ct 
que nos administrntcurs, s'ils 
ouci du bien-Stre ct des intdrets 
ardcront pas A cn nous fairc pro- 
!s reclamations dcs cxploitcurs 

:sscr un inventaire complct dcs 
utc sortc, plus ingdnicuscs I’unc 
qui sont rangdes dans son ma- 
toire dc Mcnlo-Park, qu'Edison 
ume, nous Ic rdpdtons, ne suffi- 
ons, pour finir, un engin harmo- 
nte centimAtrcs environ dc lon- 
en duquel on peut pomper sans 
ou trois bariis d'eau dans unc 
machine A graver ct taillcr les 
me machine dlectriquc A brodcr, 
ictriqucs coupant les matures les 
e boitc parlnntCfUn oiscau qui 
A plus dc trois cents metres, un 
dont la roue, d’unc resistance 
to par le son de la voix, le tasi- 
sgistro un vingt-cinquitnc de 
grd thermomdtrique Fahrenheit, 
le pauvre petit train-boy a perdu 
is le jour oA la miserc Ic chas- 

ct flevoue commc le Promdthiie 
" b , icnfailcur dc I’humanitc 
a late solennellcmcnt dansle ca- 
s pcuples aflranchis et rdconcilics 

supposer quo nos ieelours ac- 

it I’iliustro invenleur o 
r ” connnltro ot annro- 

K"ti 6 S 8d ’ U "^ 0 

ages BUivantg' m , P1 “' M - P - 
nalaou ? n ., nan t uno 

S? n55ur 

> inAlcai “ons^J,®““ £ ““nlo-Park 
bavail/er; 8es ““^os et 

'fo°Si n 081 

Eofson y "foil ‘ ran quill 0 . Cost 

''■Worts, il choisit, 

los <16L.0ul.tiH A l'nlriviLo, su,. 0 
m 80,60 06 los caracldres s’in 

Los applications pratiques do 1'AlectricitA 
qui sont dcstin esA rendro A tous — riches 
ou pauvros — dos services journaliors ct 
peu codtoux so it oolles surtout sur lesquel- 
les ia presso appclcr I’attention. A co 
titro, nous ctiyotis tlovoir recommandor 
d’uno facon toito particuliAro ia lampo Alec- 
triquo d'Edisoj dont lo succAs et 1'utilitA no 
sauraiont plus jtro mis on doute. Dans l’ar- 
ticlo biographiiuo consum'd tiujourd’lnti A 
I’illustro iuveiiS'ur amdricaiu, nousdomtons 
uno doscriptici do cotto lampo, quo Ton 
pourrnit nppoler dgalitaire, car die permet- 
tra mix plus It. mbles prolAtaires du se pro¬ 
curer it tris lis prix la mflmo lumiAre qui 
dolnirera los sa oils dorfis dos milliotmairos ot 
dos princes, hSsultat qne lo gaz n’aurait 
jamais pu oblinir. Afin d'ddilier complAlo. 
meat lo Iceledr, nous reproduisons Parti¬ 
cle quo lo minutoro des posies et tclegraphcs 
a insdrd dautj son catalogue ofllciel do 
Imposition rilativomout A cette partio im- 
portauto des dlcouvet tes d'Edison: 

^exposition cu syslaine d'uclair.igo tilcclriquo 
do SI. Edison at Palais do l'lndustrie doit elro 
onvisaguu A un point dc vuo tout particuliorqiii 
ucliappuro A ceux qui visitcront lo Palais par 
| occasion, oil patsant, pour aiusi dire. 

Uioa quo lo systbino soil prasentd pour la pro- 
m.Aru tots, il no faut pas otlblior qu'il n’est ni 
11,10 experience, ni un spectacle, mais un fait ac- 

I-o succos du systAmo d'cclairaga ulectriquo 
iPEdisoii, otabli A Mcnlo-Park par I'ujiairago 
d uu aspacu do un millu oarra, ti eta suivi par 
son iutroiliiclioii dans lacapilalo dcs Etats-Unis, 

\ork ous las Iravaux d'inslallaiion pour quin; 
inillu l.'iinpas, et lorsquo cello iiistallaliou set 
ontiAroinant lanniiiao, il y aura oncora a fail 
plus do (loux milla applications nux Elals-Uni 
at au Canada, carl tout lu inondo vout cello lu 
micro inagnillquo, acono.niquoot prntiquo. 

Unsont hian qu'un paruit rAsullut n’a pu air 
• l uno 6 U ’ aU Pf '* ll °. enmd3 i saor ‘h ces d'urgon 
On pout voir dm!rio U sulonduM. Edison, dan 
00 > • ll °" du I'lmlugrnpliios, quolqiius-uno 
ms mbriqiiga qui coiislriiisout l’dnomio inalorio 
qu Bx.gont tuulas cos installations. 

PW oxompla, la promioro fabriquo d< 
p 8 '■ ' l,,l0 < 1 Mcnlo-Park: alio occupo lot 
On l ' ne , 3 <,ui tol»rl.|Uont 2,000 lanipcs par jour 
... . succe S3ivoiiiaiit lo soulllago du vorro, 

a' . “omsation, les pompos A vide, lo montage 
r„ "P 08 01 lour umballago. 

Pni„i!„ , ° ,a plus inldressanlo'cat co'rlainoinon 
lamn» p |10 n ‘P° 3 °A t on fail lo vido dans ioi 
coins ci.uini l ' a . Vnil s ’ !lccom P lil I'" r P lus du oinii 
, or uro p ir trav limit pat 

dos Von. 0 " - C ? moi ' <:uro osl onsuito repris pai 
do nouvni, 8 ’? ni ' “ 8 *1 *- ou ul 1 

p„, ,. u 01 “tasi do suite. 

Monlo-Pm‘k r „° Sl 80 P ai<i du resl ° do 1,usilI ° do 
mAlrc r „ par uno disUlucu do plus d’un kilo- 
mouvemontnn 0 " 1 ! 168 *' 1 lnorcuro 60nt " ,isos 00 
imna * >nr ‘los machines (Ivnamo-olcclri- 

Royal Socioty, do LondroB, bimman s jounuu, 

II Nuovo Cimonlo, otc. 

Lcs aloliers d’Edison dtablisi Now-York, 
Goorck-Slroot, occupont trois centsouvriors mu¬ 
nis dns outilsotdes mnchinos las plus poiToc- 
lionuuc o'ost lo contra d'actian actucl. Cost In 
quo sont russcmblds lous los mol.curs a vapour, 
cliauditires, machinos dynomo-floolriques, otc., 
omployds dans lo systdmo Edison; cos apparoils 
sont fiibriquos par des usinos ot to compagmes 
lidos par content. Cost Ifi oil so font los dtudos 
d'installations iiour l'Anglotern: ot l'Amdnquo 
du Sud. ' , . . 

On y ossayo, lorsqu’olles nrriTont, los machi¬ 
nes do 125 cliovaux do la corapagnio Portor- 
Allon, avoc losquollcs VEdison Illuminating V 
doit dclairer New-York. , 

L'Edison Tube Company do Now-York fabri- 
< 3,10 actucllemont, ii raison doplusiours kilomo- 
tres par jour, los conductours et los tubos qui 
doivont ulro placds dans los rues pour forinor los 
conduclours principaux. 1 

L’o iposition d’Edison au Palms do 1 Industiu 
ronfermo dos spdeimons do toules lcs mat.drei 
ot los machinos fnbriquoes pur tous los atoliori 
qiii Iravaillont pour los compagmes qui oxploi 
tent lo sy&tomo Edison. 

Un do scs roproscnlanls monlro lo system* 
complol on fonction. Co sysldmo comproiid un 
.■lp.iididro do 150 cliovaux, systdmo Uahcock o 
Wilcox, un inotourilo 125 cliovaux ii griuido vi 
lesso, systdmo Ariniugton ot Sims relid ii un 
ninchino dynnmo-dloctriquo do 120 cliovaux, do 
eonducleuis, dcs tuyaux, des installations, d< 
inosurours do courant, et millo lampos qui ocln 
roront los salons d'Edison ot lo grand cscalii 


L’inauguration desfdlesdonuit d l’Exposilii 
intorniilionalo d'dlcctricitd a ou liou, coini 
nous l'avions nnnoned, samedi dorniorau mili 
d'un concours considdrablo do visitours. 
vcillo, on avail rdpdtd gdndralemont, ot co 
l'dndtition. i> laquollo avaiont dto convios 
sommitds do l’Elat ot donosgrandos admin 
trations publiquos ainsiquo los roprdsontuilts 
la presso, aolfertcot nllrait particuhor quo, 
vendredi dlant jour d’Opdra, olio apermis d < 
londro, au Palais des Cliamps-Elysdos, l oxdi 
lion do RohaH lo Diablo, grace au fantastic 
instrument d'Edison. i 

nns une inutilo descnpl 

it famoux des oxhibitours fori 
voir pour lo.croiro ». Et on 
u, on n’est pasbicn sdr do n'o 


, I" 1 *' l' ,nco d0 «"" lo clavier, frnppo 
OS ol los sons sticccssifs so produisonl do 
io dans lo piano, do iniimo quo dans roiirnn 


, “odnlc mnglquc. 

WW»iS 3 = 

| °« cli quoln^ U 6 V |n8li l t“ U o 0 o? 0 “ i , j'°“j 
u4 la suppression absoluo du i oint 

Rond'cl'lo - ; t,,CS,cp 

u - Maekaiule r ° 

At: P n“p 0 o 0 uv“„r^°? 1 Un i “‘ 4 - 



Go HyHtumo n elu ad on 16 pur I 
« London Chatham and Dover Hallway, 
lilan District (soutcrraiii) Hnilwnv C' » 

os immciiKcs availlogos. 
db inspoctours da < Moan 
°> lo rccoiiiniaiidont on < 

-o.......xnu lorinom « oux-momcB et pro so n to 

uno doiihlo sCcurilo. Co in mo fonotionnomcnt 
roi! no Iaisso Hon a desiror el nous lo rocc 
? ul . ®P^clalomenl A raltontion gonuralo 
■I'• do la Compagnio « London G 

and Dover >, dit: « Cost lo mcillour syslAir 
uquo qu on nit ononra invonto pour. oiiipAc 
collisions sur los voioa ferities. * 
itlo |"|?5«!! 1 ,Y. oir f °ncliomier A la section nmd 
A cfliA*5?. s « 0n Iclornaiionalo, nu roz-do-olio 
modAlnn U i “ uro,,u du Gominissarial nmdrica 
ccuoios do co nouveau systAmo. 



'ANNlSE — N" 1 

Prix du NiunAro : 35 contimss 









F-n fondant co journal dont nous publions 
nujourd’hui lo premier numiiro, nous n’a- 
vons luillomont song6 ft vcnir fairo eoncur- 
l'cnco faux fouillus pdriodiquos, nidi goes 
nvec autant do talent quo do competence, 
qui, it Paris, so consacront oxclusivomont 
ii I’etiido des questions relatives a l’liloctri- 
eito. Notre pretention osl mollis dlovdo. 
Mais si nous n’aspirons qu’a occupor uno 
iilaco inodesto parmi los conlV6ros do la 
[irosso speoialo dont nousallons grossir los 
■aiigs, onooro pou 6pais d’ailloiirs, nous 
ivons miamnoins la conviction quo notro 
uuvro n'on sera ni moins utile ni inoins 
eooiidc on lions rbsu lints. Notro principal 
mt ost, on etl'ot, do vulgariscr dans do vas¬ 
es proportions et surtout do rdpnndro par¬ 
ti los classes encore pen delairdcs des vil- 
- s utllKi catnpagnos la connaissanco des 
ecouvortcs et des inventions dont les pour- 
uivants du magique Hindu allongont sans 
- HS0 * !l gloriottse serio, et, sans negliger, 
one maniore absoluo les cOtiis theoriques 
u su jet, d'en exposer attssi claireinont quo. 
tsdble et dims un langage accessible mix 
les applications ct les avanta- 


■uses uno largo et grabble hospitable, bor- 
;i ,m siu ’ i,!o rmc 

^C'tK: i r ai,si!uiesijio = rii - 

Vtus romanmato ° 1 luP0 ’ los hommos les 
k ^w 0 S5 a |J s “ nt,,i cherchouri do 
'^ oul ^ tuo4 ^''oaopt lu i odon t los trn- 

ouniirea ,i ’ 'Wo* „ QUP ^ a4l V>o ns 

mi >°» outre, 

"•wits, dos apparejm "f° m ° <lcs inftru- 

devoir ,?n 0l ' j0lS div «» qui 

Us Vif ot lo pj us vo, luor 1’iuturOt lo 

is do quolqtto at- 

los nouvcllos, les fails dij 

Tel ost,succinetoinont expose,lo program* 
•mo quo nous noussommos trneddans uno 
vuo do propagaudo ossoutiolloinont demo- 

Ilobdomndairo it scs diilmts, lo lUoniteur 
ofjicicl do I'J'Jkctriciti! paraltra doitx fois 
par somaino, si los eirconstancos rdolamont 
unsnrcroltdo publication et dans lo cas, bion 
ontoniln, oil lo suou&s favorisorait nos ef¬ 
forts. Qu’il nous soil purmis, toutofois, dol’a- 
vouor sans vnnilA ni fausso inodostie, 
crayons ferinomoatu la reussito complete do 
notro tout,dive, Los adhesions preeiotises 
quo nous avons rciicontrbas dans lo momlo 
savant ct indnstriol xulliraiont it anlorisor 
nos ospirancos: itiais co qui nous inspire 
plume conflnhco duns l’livcnir, c’ost I’ititdrOt 
passionnfi aveo loqtiel lo public sans excep¬ 
tion suit lo diivo oppoinont prodigioux ot 
coutipu des applications do l’dloctricile, co 
torribloagent do la nature rdduit dosormais 
purlos conquates do la science a romplir do- 
cilcmont los plus bumbles functions do la 
vie domestique. [/exposition ouverto on co 
moment an Palais do i’ladnstrio presenlo it 
cot dgard un speclaclo curieuxot instructif; 
et on voyant les foules si avidos do voir et 
d'approiitlre les secrets merveillcux quo re¬ 
dolent ccs machines, cos appareils, cos ins- 

nal contmo celui dont nous outreprenons la 
publication repond A tin bosoiu reel ot 
appeld a rondro d’importants services. 



, Quel cst done cot lionime dont lo nom absolu- 

'W'Mf h . ,or > d< J 4 c4li!brc aujourd’hui; aura 
Wen at sans doute uno illustration cPunc ponu- 
laritii umvcrscllcs ? D'oi, precede ce prince do la 
science dovant loquel ehaeun s’ineline nvec 
respect, e qui, du haut do son installation splcn- 
dtdc, semblo domincr on autocrato dans ce Palais 
dos Champs-Elysiics ot, | c monde pl ' ™ 
chim.quc a envoys scs chcrchcurs les plus, m 
triipidcs ct les plus'distingmis > Voilft des ones’ 
tions, posiies bten.dcs .Ibis, q uc ..]» 
avide des visitcurs do /Exposition 

it Ic voudra, dc disputcr la palmc des richcsscs 
A Yhombre d'oro lui-mime; ce nabab amdricain 
doit Ic jour A un humble travailteur qui, n'ayant 
pas de pain A lui donner, invilait.son fils, Age de 
douze ans A peine, A allcr cn chcrchcr hors du 
logis patcrncl. 

. Ce .savant prodigioux dont les ddeouvertes ' 
ddconccrtcnt les specialists* les plus crudits, et 
dont chaque invention, rcipic' d'abord com’me 
tine de ccs mystifications gigantesques qic les 
Yankees sc plaiscnt A lancer dc temps cn temps 
sur le vieux monde,- devient bicnUM I'objctd'une 
admiration melee d’uno sorte de slupeur; ce 
maitre gloricux cnlre tous, qucI’histoirc prcadAx 
peut-etre pour un des pnrrains du dix-ncuviimc 
sibele; cel oracle incontcste ct suivi n’a iamis 

grands travaux publics executes on Europe 
is le courant du siecle elaieut du.l a des in,'d- 
••-urs prives de diplAmcct de touts attache gou- 
vcrnementale. X'insistons pas sur eetto matiero 

asscz delicate, ct revenons .. 

nous aliens pareourir A longues enjambec 
uarnere s.nguburemont laboricuse ctaeeidei! 

^ouK’n.latriste wn’ d-lS^ 
Michigan, cst uc A Milan comfT* .n 1 * 00 da,,s ^ 
l’Ohio, Ic io ftvrier ? ° d Krjt S 

ans passds,. compte dans s: 
na res encore bicn portants 
tailleur,. pdpinieristo, 

"Mrohandde biens.- map 

futur inv 


x, brochures, revues, ct pretant 4 tout un 
r4t, lc jcunc Edison attcignit sa douzifc- 
ic sans que lc moindre indiec cflt rdvdld 
ntourage les qualitiis cxccplionnclles, les 
:s multiples dont la nature avail dote lc 
ivenlcur du telephone ct dc I’dlcctro- 

ndant.l’cntrclicn A'mcbouchcinulile, dans 
umbic demeure dc Port-IIuron assidgio 
c mistre persistante, devenait onrireux. 
jugcant que son fils, auquel il avait 
is, avee son dncrgic ct son aclivitii d’esprit, 
nstitution cxccllcnte ct un temperament 
i, avail attcint un ddvdoppement physiqqc 
■nl suffisant, l’cx-tailTour-grnincticr-pdpi- 
» pril-il la resolution de 1'abandonncr 4 
jpres forces..Un soir, en soupant, il lut 
;e done que, des le lendemain, il travaillc- 
"qualile de train-boy sur la grande ligne 
indact diiCcntral-Michigan, que desorntais 
it sc suflireAlui-memc ct nc plus compter 
ssistanccdcs siens; ct apres avoir debourse 
us dc premier iHablissemeni dc l’apprcnti 
errant, il crut en conscience s’etre acquitte 
etement des obligations legitimes dc sa 
rile. En veritable nourrisson dc ccttc terre 
du self-government ct dc I'initialiyc 
ducllc, lc jcunc Edison requt sans obscr- 
i, a'vcc ealme, sinon avee joie la declara- 
atcrnclle, ct le jour suivanl, il faisait son 
; dans lc mondc : lo begin in the world. 
sc lerminc la phase tranquillc.insouciante, 

. dc la carritre d’Edison. C’cst commc lc 
iguc dc cc roman d’avcnturcs qui commence 
un fourgon dc railway pour finir commc 
eerie dans unc apothcosc. 
voila done parcourant son train d’un bout 
lire pour offriraux voyageurs des journaux, 
nagazincs ilustrds, des gateaux, dcs fruits, 

pipes c 

chimiques ». Car c’cst en ccla que consistc 
fession choisic pour son rejeton par la 
,-anccde l’cxperimente hollando-americain. 
bout dc quclqucs jours, intelligent commc 
it,Edison connaissait4fond' 

furtivement en allant s’approvisionncr dcs jour¬ 
naux, principal objet dc son commerce, lui of- 
fraient dcs attractions irresistiblcs, et il n’cut dc 
repos qu’aprfcs avoir pbnctreies doublcsmysthrcs 
dc la telegraphic ct de la typographic. 

Mais Edison n’est pas un reveur, c’cst avant 
tout un homme pratique. Ainsi, sc trouvant dans 
les ateliers du Detroit Free Press au moment oh 
l’on vendait au rebut dc vlcux cnractfcrcs, l’idec 
lui vient aussitet dc fonder un journal. Il achfctc 
done les tetes de clou en question, sc procure 
ailleurs les ustensilcs indispcnsables, transporte 
le tout dans son fourgon, ct quclqucs jours plus 
tard public lc Croud Trunk lliratd dont il cst 4 
la fois redactcur, protc, corrcctcur.tireur, plieur 
ct qu’il livre tout frais aux voyageurs du train. 
Malhcurcusemcnt, un llacon dc phosphorc qui 
servait 4 scs experiences de chirnic, en lombatit 
dc la tablctte o4 il etait depose, inccndia le 
planchcr du fourgon. Lo conduclcur du tram 
apercut 4 temps la fumecctetcignit lefeu ; mais, 
pour evitcr lc rctour d’un scmblablc accident, il 
jeta sur la voic lc materiel complct du chimistc. 
impriineur, apres quoi il lui administra unc rud 

Cc n’est,du rcstc.pas la scule mesaventured 
sa vie dc journaliste. A Port-lluron, o4 eta: 
toujours son domicile, il avait, encourage par 1 
succes dc sa premiere fcuillc, cree un journal, 1- 
/)_„,/ p r y (Paul l’indiscrct). Tous les collabora¬ 
tors qui sc presentaient etaient bicn accueillis 4 
condition dc ne rcclamcr aucunc retribution. Les 
articles n’etant pas signes, le Paul Pry ne gar 
aucunc reserve, altaquant gens, choscs, 
institutions un peu 4 tort 4 travers. Un habitant 
lc la ville violcmmenl altaque so chargea 
.•enger loutes les victimcs des indiscretions 
journal. 11 rencontre Edison sur lcquai, le prend 
par la cravatc ct la ccinture, ct sans exphea' 
lejelte 4 i’cau. Edison, r^i savait nager, 

: quclqucs benefices, il prit - —-- 

urs enfants dc son 4ge en leur confiant le 
lc debitor 4 sa place scs merchandises, 
combinaison permit au jcunc cxploileur Ac 
lire sa passion d’apprendre, toujours plus 
ct tandis que scs employes sollicitaicnt la 
We, lui, paisiblcmcnl assis dans lc r ° u jB° n 

aSa o S °t s n Lo aTratte'd'analjrae qualitative . 


nmencc sans guide le premier apprcnlissagc 
ceSence fen. labile « cst promptement 
ssd maltrc. . ... 

rout d’aiUaurs etait pour lui sujet a rutoibn. 

:s machines, \cs apparcils dont \\ po 
ocher excitaicnt son ardentc curiositcct, pom 

ixpiiquer les secrets deieur ^—^ 

ode dc leur fonctionncmcnt, n sc mu 
physique cl la mdeanique, ct toujours, 
itendu, par les memes proeddes. 

Les bureaux tdlegrapbiqucs ou il fimssai P 
ctenir des employes les reuse,gncmciri ^ 

Paul P 

Cette double lc?on nc fut pas perdue. Edison 
rdsolut, en clfet.dc rcnonccr provisoircmcnt4scs 
experiences et dc consacrcr tous scs loisirs A 
l’dtude. Lc train, dans lequcl il excrqait sc.. 
commerce, faisait regulierement unarret dc plu- 
rshcurcs dans la ville dc Detroit. AussitOt 
rd, notre train boy courait 4 la bibholheque 
’ i’dtait donnd pour t4che de lire t""s les 

s. Fo 

ct jusqu’au 

noins pri- 

sic, C J t ' ui , c ,“ t ,'n r 'nothdcahcrprTs J’immet pour 

pouvrnt roster u .y sa disposition. 


cha 4 utiliser ce q . procure 

bord de la voie, en face dc la maison, un gros tas 
dc sable, et, au passage, s’dlance hardiment, lc 
train marchant4 toute vitessc. Cette manitre de 
rentrer chez soi adoptde par Edison cst fort ori¬ 
ginate ct avantageuse, mais n’est pas 4 la portde 
dc tout le mondc. Nous nous arretons sur- ces 
details parcc qu’ils permettent d’apprdcicr lb 
couiagc, lc sang-froid, l’agilite dc l’hommc 
vraiment extraordinaire dont nous esquissons la 
biographic. Voici un fait qui cst une attestation 
dloqucntc du ddvouementet de I'intrdpidite d'E- 
dison ct dont la divulgation lui vaudra bicn dcs 
sympathies. Il attendait un jour sur lc quai de 
la garc dc Port-Clement, lorsqu'il apcrqoi't prts 
de lui, 4 vingt metres d'unc locomotive arrivant 
4 toute vapeur, un tout petit enfant jouant sui 
la voic. Sans reflexion, d'instinct, Edison bond! 
d’unelan detigre 4 travers la voie, cnlevc lebab; 
au vol ct rctombcavcc sa proie dc l’aulre cote dc 
rails, affleurd par les tampons de la machine. L 
pire de l’cnfant etait lc chef de gare de Port-Clc 
mcnt.ct pour s’acquittcr covers son sauvctcur, il li 
apprit la telegraphic d’unc fai;on methodique c 
lui donnant ainsi les moyens d’cxerccr une veri 
table profession. Cost alors qu'il renoneja deli 
nilivement 4 son commerce dc train boy, qu 
avait quilte 4 plusieurs reprises pour essay 
divers metiers, cclui dc cordonnicr notammen 
et auquel il revenait apres chaquc tentative i 

Son apprentissage, on le dcvinc, ne fut p 
long. En fort peu dc temps il devint un mani[ 
latcur habile ct d’unc extreme ingeniosite. M 
si, sous le rapport dc l’intclligcnce ct dc la 
pacite, e’etaitun praticicn module, e'etait en 
vanche lc plus detestable employe que Ton ^ 
jamais rencontre. 11 etait toujours occupe d 
chose elrangerc a sa besogne, oubliant de i 
vcillcr son apparcil ct laissant en soufTranc. 
depiVhcs publiqufset privccs. A Stralford.j 
lc Canada, son dircctcur.qui connaissait ses 
tractions, lui impose, un soir qu’il le laissc 
garde, l’obligation dc telcgraphicr toutes 
dcmi-hcurcslc metric mot 4 la station vois 
Edison, qui a revri un autre cmploi de sa i 
improvise un petit apparcil que la grande aig 
dc l'horlogcmcttait en mouvement et qui tele 
phiait 4 sa place, le moment venu. Cette r.u: 
aucunc dcpechc nc fut enregistrce 4 son bur 
au grand etonnement de son correspondent, 
n’obtcnait que le memo mot revenant 4 ii 
vallcs fixes. L4, comme 4 Cincinnati, comi 

f ouisville, lc trop ingenieux employe fut ii 
cherchcr fortune ailleurs. C’cst 4 Memphi: 
•p4, qu’il cut la premiere idee de faire pi 
multanemcnt deux ddpeches en sens in' 

on refusade rexperimenter. Et co ne r 6om 
deux ddpechos, c'estquatre qu’il n rz....: * 


graphic n’a ccsse 

P tr ma,hour, line p^aitco^^r^^ 

experiences sur 1 clcctn ^ so „ ind us- 

son ptre etait 4 

A New-York enfin la chance le favorise 
Gold and Slock Company l'appcllc pour rri| 
un indicatour qui s’etait derange au momer 
l'on en avait lo plus grand besoin, ct non s 
ment il le remet promptement en ctat, maii 
joint un apparcil dc son invention qui im| 
succcssivcmcnt ct sans perte de temps les \ 
tions dcs valours. Dfcs lors, son succi 
croissant. La compagnie dc l’Union des 
graphes de l'Oucst lui donne unc magn 
remuneration pour avoir le droit d exploit: 
premiere invention teiegraph.quc <*. ™ 

ainbulantc. La maison o<- °”’’ s J" ion Pour 
Sorts v’mgtmrutes, Edison dispose sur le 

redouble d’efforts 
puissance dV travail et sa fecondite d’espri 
attestecs par les nombreux brevets qu U . 
aui S ont au nombre de trcntc-cinq po 


supputant la splendidc fortune que son 
lui promet, il sourit cn haussant lcsdpaulcs 

nc travaillc ni pour I'argcnt ni pour la 
II cst profonddment indifTdrent A cc qu’on 
ire do lui. Son scul bonheur, sa scule am- 
son but dans la vie, e'est dc decouvrir, 
iter, d’dlargir dc plus cn plus Ic ccrclcdcs 
ssanccs humnincs, dc surprendre un A un 
rets dc la nature, dc fairc jaillir la lumierc 

marche, conduit dans sa force, sans sc 
uper dc ccquclcs autres ont ditavnnt lui. 
ccptc que coSjui lui cst scienlifiqucmcnt 
trd, ct, pouf*lui, I'nflirmation du plus 
gdnic n’a qiie'ln vnlcur d'unc hypothec, 
c la demonstration nc lui parnit pas snfll- 
il envisage lYSon lour la question. C'esl 
u'il cn cst arrive A rejeter line partic dc la 
s dc Newton sur la gravitation. II pretend 
matierc n'est pas attiree, que Ic inotivc- 

irsonnc plus que lui n'a horreur dcs iddes 
Igucs, dcs opinions faites d’avancc. II a 
gon originalc d'envisager les choscs qui 
a conversation cxtreinemcnt intdressantc. 
Ic scs axiomes favoris cstcclui-ci:«Toutcs 
istanccsdntunc intelligence proporlionmic 
; besoins. E.vpliqucz-moi sans cela, dit-il, 
:nt il peut sc fairc que Ic bourgeon d'unc 

in trajet dc' cinquantc miitrcs ct s'dlevc, 
irement au.v lois dc la gravitation, pour 
Ire un rayon do lumierc? « 

i liltdraturc, il aime les podtes d’imagina- 
cs romantiques; il lui faut unc action dra- 
jc ct un style imagd. II cst admiratcur 
innd dc Shakespeare ct dc Bulwer. 
n revanche, les auteurs qui sc consacrcnt 
dc patiente ct approfondic du cceur humain 
liscntmoins. Tout cn rendant justice A leur 
, il a peu dc goQt pour Thakcray, Dickens, 
:c Sand ct Balzac. • 

’Arne humainc I’intdrcssc peu ; toutes scs 
intcllcclucllcs sont conccntrdcs sur I’ob- 
ion dcs lois dc la nature, 
h' s'imaginerait facilcmcnt qu’Edison cst 
'dablc. Si jamais homme cut dc sdricuscs 

• projets pour l'avcnir. C’cst alors que sa conv 
sation devient d’un intdrdt extrdme ct que 
parole prend un caractfcrc dlcvd. On nc sc la 
pas dc l'cntcndrc. II a unc fagon dc parlcr 
forces dc la nature qui n’apparticnt qu’A lui 
qui ouvre, dans I'csprit dc ccux qui I'dcouti 
dcs horizons inflnis. 

« C'esl encore son phonographe dont il a 
Ic niicux fairc les honneurs. Il cause avee lui 
I'appcllcson vieux phonographe.« How are j 
old phonograph? » lui dit-il gaiement. II tou 
la manivcllc ct I'instrumcnt lui rdpond dc 
petite voix mdtalliquc un peu nnsillnrdc ct gr 
dcusc, cn anglais, cn allcmand, cn cspagnol 
cn latin, car cclui qui l'a erdd parlc un peu 
qualrc langucs ct a cu soin dc les lui apprenc 
Vous pcnsczbicn que I'instrumcnt sous la ir 
dcl'invcntcur fonclionnc admirablcmcnt. Ai 
('impression produite sur les assistants est- 
toujours Ires intense. 

« l.cs visiles durcraient dcs journdcs ct c 
nails si Ic mnitr • dc Mcnlo-I’ark voulait ini 
scs botes a tous les mysteres dont il cst cntoi 

« Lorsqu’il parlc deshommes dcscicncc.c 
avee un sentiment dc respect ct dc ddfdrcr 
Dc tous les gens dminents avee lesqucls il s 
trouvden rapport, cc sont cux chcz lesqucls 
a rcconnu les iddes les plus dlcvecs, Ic p 
grand ddsintercssement ct la simplicitd la [ 
vraic. II parlc souvent de son entrevue a 
William Thompson ct sc plait a rappclcr qui 
savant avail un mauvais chapeau, dcs habits 
pcs ct n'dtait pas mieux velu que lui. 

« Enlin Ic soir arrive. Les visitcurs cnchai 
de leur excursion, reprennent Ic train;I'hcun 
repos a sound pour les pauvres Illiniums, e'es 
moment ou Edison commence a travailicr, 
soupc, ct, an milieu du silence profond dc 
plcinc campagne, il medite, cssi 
-ilinvcntc. II prolongc sa veillc longtcmps a[ 
quo tous scs collaboratcurs sont partis. La 1 
chine a vapeur cst arrdtec, les fourncauxi 
dtcints, I'invcntcur cst scul dans eel imme 
laboratoirc, parcil A ces ancicnsalchimistcs i 
dans Ic mysterc des longues nuits, chcrchai 
sans so lasscr, la transmutation dcs mdtauj 
1'dlixir dc longue vie, ou A ces sorcicrs 
pruparaient A minuit les philtres amoureux c 
poudre dc succession. 

« L’aubc lc surprend parfois creusant un r 
blemc, ct il n'est jamais moins dc deux ou t 
heures du matin quand il regagne son home 
sa petite famille dort paisiblcmcnt, les y 
fixes vers les dtoilcs qu'il examine avee un ii 
rdt passionnd, trdbuchant contrc les caillou: 


LA ' : 

Correspondance de Paris 


Bureau central: 12,. Boulevard des Italians, Paris 1 

Nimino du Diuanche: 2G cunt, a Paris ; SO cent, dans lbs DBpaiitbments. ex-a l'Etbanobb- 

Tuition raAN^aisr 

Nous prions lea lectaura qui no voudraicntpas M. Edison, nu lioudo la.pourvoir d'armalurosid&Ur 
s'abonnor,. de nous’ ronvoyor le journal sans fid- catos st oncombrantes pour amonor I'dlectricitd A l'intd- 

fiire la bands; dans le.cas contraire, nous consi- 7““ ****"'**&* 

9 9 par un. tampon on platro dans lequel doux anneauxen 

■direrions leur silence, commo uno marque, d’ad- icuivro sont scelids. Chacun db ces doux •nneouxwt; 
hdsion. isoudAtrun dos doux fils do-plutine db 1'intirianr qi 

; vibnnant aboutir las deux exlrdmitte i’ "• 

JOIN IN 1 ERNATIONALEjbrillc 'douce ct plircravcc'uirAi 
'ELECTRICITY.' ’ . lour, une intensity scmblablcs t 

'ELECTRICITE. , lour, u 

jR?? i-Ouaoe m:s ateuees 1 f 1 '«•«■^rtmo ClAdarage. 

? . iri.ui.Ri.Mi ni!- - Cntto lampe, dont lo pnx esi 

V>-‘CT , '' cmquantc environ, pciitilurcr lu 

■' L.cxpositton Internationale d’AIcctricilA au' d Agage si pen dc clialeur qt 
Palms de I’lnduslrie a mis un fait en Avidcnce'J presser entre ses mains sans res; 
jut intArcssc trop directcment rimprimeriejsensation briilanle. Ainsi empl 
pour.quc nous le passions sous silence. tricitA produit to d<juj- too de c 
I, Nous voulons parlor dcl’Aclairage des aic-jpour too de lumiere, tandis qui 
licrsd la lumiAre eleetrique par 1c systdmo K»KO 90 pour too de clialeur et 

E‘jispn v . .. ... de lumiAre. M. Edison a pourv 

Jusqu ICI, les imprimeurs sc sontfenus, d’un systAme de canalisation di 
ton sans raison, sur unc prudente rAscrve a parlerons tout A I'iieure ct 
.dgard de l’Aclairagc Alcctriquc. Dcs cssaisehcz ce prodiiiicux esiirit >1. 
lombreux ont AtA tenuis avee des foyers sances thAoriqucs jointes A m 
mtssants, donnant une lumiere blanche, Acla-jeclairA, profond, dcs nAccssitAs i. 
ante, rayonnant sur une grande surface. Ce Disonsde suite quo celte cmnli 
ystdme pouvait convcnir dans une ccrtainc pierre angulnire de la mise en oral 
lcsure aux rues, aux avenues, aux jardins S ystAmc d'liclairage, puisqucllc 

erenv ef '“'^g 80 ? 'nMnvAnicnts dan- lampcs mobiles de nos ateliers. 
tdlUi avee laquclle chaquc ouvricr en dis“ J-SicnTfa'bimivemm, A Paris 
ur sa cass L e 0 Te P r ri , T nant “ province, oil le regime des atelie 

armes; limprimeur inclinant an besoin le j e cu3 sous-sols sins air deces 
ec qui Aclairc sa machine, alin de niicux sole jour liltrc avee peine,A travers'd 
:ndrc comptc du foulage A l'atde dcs rayons etroites 011 dcs clrlssis vitrAs A 
c. dcsqucls les Amanations gr.usse 
L eclairagc Alcctriquc, pour sc substilucr A miditA, la fumAc s'mtaclicmt, dc 
Aclairagc au gaz, derail se priitcr A un 111a- verres un aspect corne 5 • 
iement aussi commode. II etait rAscrve A I C s tcrr iins Ai nu ,A n, r 
illustre savant de Menlo-P.irl; de rAaliscr ce on dispose les machines les lines 
desideratum .. M. Edison a discipline la uilrcs on serre les ,-isses k, 
imicre eleetrique, fa divisAe, rendue ma- r p' c d^ A pied on ^040™? 
e^nonle./f' nclif i 1 «P : >^d'impri„,cric dcs’immcublcs crAes 

erepondre A tomes les nccessitesdcfAclai. autre destination. I.anl pis si 
tgc, en mAme temps qu un instrument lumiere en sont absents; on « 
hygiene qui, en sc suhslitunnt au gaz.coiniiic on pourra L’csscntiel e> 
Srcesans ^voiry iniXd« i 

les onvrieJs audAmmcnt de la san.e | ic s de commando. Lcjour est d< 
La lampe Edison se compose d'un globe se . scrvlra . du t' ,az - Et ’voili^comnicr 
ermA en verre de la forme ctdcla mW? ln V**? ,Cr \‘l Uand la “ bc sc 
func poire ordinaire, contcnant un IllamcntP™ UmC CS bCCS de Baz qul 
lo charbon en forme d’arc obtenu avee 1111011 V , , 

ibrede bambou grosae comme un crin de ' a , a des . da " Bcrs Permanent 
iheval. Ce filament est reliA A deux lils de ? ^ 1 .” l . ,vrlcr >' tontracte dcs ma 
ilatine qui y amAncnt I'AlectricitA. Le vide, 1et Icpprenti de douzi 
:Rt fait dans le globe, sa partie infArieurec * U SUr a n , lac llnc > a c, ' l “ du bee 
:st close avee un disque en matiAre isolante ""’|!“' d ? 8 .®V 8 . dea ‘1" ' 
rntour duquel sont scellAs deux anneaux en i P r V 4 .' brd 4 ’ nl " slhlt 

;u.vre. C'est par ces anneaux que la coni- fen! ,^^ 3 ^ 80 moral ' 
numcation des lils exiArieurs se fait avee 1 ! ltiS . a cllers 011 des .l ourl| s | 
:eux de l'intArieur. Cette communication "Tc lanalt > le palest plus grand 
:8t-clle Atablie, et le courant circule-t-il dans “i,!, ?“ d . e e con ? tatcr di ">s qui 
esfils, qu’aussitOt un arelumineux se des^ d ^ ‘ a ’ n ?hii? UV . nor ? ,rav: ! ,llcnt 
nne autour du Iilamcnt de charbon; la lu,?„ nf J“ S , bllc ' , J ) U , bout dc qui 
mire produite n\a nullement faspcct blafardf,?"; 8 '^ 1 ? r divelo PP 6c P<>r le 
[unaire, de celle Amanant des globes de n.w“’ d ? 8C ““Podtcim se i 

titreque : lrfs'CannIlsatr5!ia ef , lffs,appar<iils'diF(a qunnbt6|rd'41citricite qul y circule'. Sa 
gaz,~‘avcc cette diflfdrencc ceperi&antqu’ellessensibiliti est -telle'qu'il fciircgistrc toUtc's 
sont plus simples, qu’elles exigent moins de’lcs oscillations du cournnt/permettant airisi 
travaux, qu'cllcs sont mfcins coflteuscs ct'de distribiier ou de retenir 4 volonti l'elcc- 
moins dangercuse9. itriciti, suivant les besoins de la consoinma- 

, II cst.aisA de s’en rendre compte dans lion. 

l'cxposition de'M. Edison ou des fragments Quand nous aurons dit encore quo les: 
de canalisation de toute grosscur sont expo- fils des appartements sont entoures d'une 
s6s avec-un grand nonibre de branches, de enveloppe de coton incombustible, nous 
gcnouillircs'ct de supports de lampes. Evi- aurons ajooti une preuve. 4 colics d6j4 si 
jddmment leur aspect est cclui d'appareils nombreuses, que nous avons inumcrtScs, du 
[fapriquis, non pour'des essais ou des ;exp6-; caractirc dminemment industricl des ddcou- 
nqiiieSdo laboratoire, mais pour,uneappli-vertesayantpcrmis 4 M. Edison de former 
'cdtipij immddiate de. la Tumid'rcYdlcclriquelun systdme d’dclairage complet, conscrvant 
kians nos appartements comme’dans nos ate- dans toutes scsparties une telle homogdnditd 
Iters.. jqtte l'une d’ellesjtfch pourrait dtre ddtaclidii,' 

i .^h'danger d'incendie dans la dunalisation'sans qud lev'sVstdnie. fit rendu: d’une appli- 
'diiigaz est,. disons-nous plus h'aiit,‘ccluljcation tris'difficile,' sinon impossible. 
Ipccasionnd par les fuites. Les canalisations Nous deVdns'dbnc nous aftciidre a voir,: 
Idlectriques cn ofirent un aiissi, ct la preuve dans un brcf ddlni, les bees de'gaz de nod 
p a dtd domidc dans une installation d'un [ateliers ayee lcurs abat-jour brfllife, noircis, 
'autre inventeur, dans la salle de la biblio- transformds plus souvent cn rdiTtfctciirS de' 
[thique du Palais de l'Industrie. Lorsque )#ichaleur qu’en rdflecteurs de dUmidre.^cddir 
tension du courant est trop forte'dans leshtur place 4 1a Iainpc Edison. tlctte rdvo- 
[fils, c'est-4-dire que l'dlectricitd s'y accu- lution pacilique, fdcondc dans ses consd- 
iffiule en quantitd bcaucoup plus grande que quences 'debnomiques, ct socialcs, trouve, 

ydiS ifl celled iftiUsdesji'our, uripiprdduiSibnj 

! Sgale de lumiire de gaZ.' M. Batchelor; quf 
I’eSf-livrd 4 des experiences ' scmblablcs cn 
Amdriquc, affitmc quo leurs rdsultats' dcono- 
Sniqucs scrOnt cn favour du systdme Edison; 

' ■■II'y. dur'ait done un intdrdt incontestable 
pour les imprimeurs 4 se serVir dc leur force 
motrice pour dclaircr lciirs-atelicrs, leurs 
magasins, leurs bureaux, si tous ces locaux 
sont rdunis dans'le mdme immcublc. 

, La presse franfaisc s'est dd]4 bcaucoup 
occupdc de cette rdvoiution 'de l'dclairage, 
uui, on peut l’affirnter, est 4 nos portes. Le 
journal des Dibats du tl septembre dernier 
a constatd, comntc nous, les avantages de la 
litmidre Edison, .dans les appartements et 
dans les ateliers. Voici cc qul! dit Apropos 
d'une installation rdalisdc depuis un an, 4 
New-York, dans un atelier de lithographic i 

« Nous avons sous les yeux une lettre 
d'une importante maison de lithographic de 
New-York, dans .laquellc le systcnjti.'Edison 
fonctionnc depuis une annde. On sait quclles 
iiifficultds offre le.travail lithographiqud avec 
la lumidre du 'gaz, surtout depuis les, appli¬ 
cations nombreuses des couleurs fiibditlia- 
graphic.iCcs .difficultds ont disparu depuis 


t dfttrjltsjj fEtcjjattti» 


irontjr-Bix atmospheres— 
carries forty passengers, 
-onty-fivo stoppages, and 

-Moncrieff contends that tho 
dug ofTeoted by boating tho 
)g it into tbo cylinders is not 
i such a route, and rolios for 
bis motor, which is perhaps 
nd, on careful regulation of 

protects tho outside passengers from any 
vapours or dust that may cscatm from tho 
chimney. Tho weight is in this case all 
used for adhesion, and tho car is stated to 
lmvo run with greater smoothness and less 
noiso than an ordinary horse-car. All these i 
steam motors aro well within control, possess¬ 
ing sufficient bmko-power to stop them 
I within their own lengths from tho maximum 
speed allowed on tramways; thoy aro 
practically free from escapes of steam and 


I Ha des,plus grands'atlraits de l’Exposl- 
tion d’dlectricitd est’ sans contrcdit la sails 
do M. Edison. La fbule s’y preaao tous 
lea iolra. M. Edison fait bien rdoliement 
y sallo comble ; on avalt tant parlb des in- 
5 ventions et surfout do la lampe merveil- 
V lenao du Mehio-Park! Tout 
• le mondo veutaavoir jusqu’4quel point le 
e cbldbre'inventeur a .tenu ms' promeases. 
% Lorsqu’lly adeuxansddj4,noneanrion'cions 
| lea premiers quo M. Edison dtait parvcnub 
•3 rdallser un systdme complet d'dclalrage 
f dlectrique, tout prdt-4 dire substitnd 4 
i l’dolairage au gaz,on acoueillif la'nouvelle 
avec one cortaine inordlulitdi On e&t vo- 
lontiers rappeld le proverbs quo l'on ap¬ 
plique aux inventions qui viennent de 
loin. On prononga nidme le mot de mysti- 
flcation. Un dlectricien, et des plus dml- 
nens,dorivait4 cette dpoqiie en faisantallu- 
sionau systdmed’Edison: « Cost une idde 
4 l’dtat d’dbauche. qui n’a rien de neuf et 
ne nous paralt pas devoir conduire 4 des 
rdsultats bien sdrleux. » Les temps sont 
bien changds. Tons lea doutea ont dis- 
paru. Ceux qiii voulaient toucher, comme 
saint Thomas, ont aujourd’hui lea lampes 
sous fea yeiix. Toua lea soirs, des lustres, 
des canddlabres rdpandent lour lumidre 
douce et dorde dans les salles 24 et 2C 
et dans diffdrentes parties du Palais. Le 
snoods est considerable; il est consacrd 
jourhellement par renthousiaamo, les td- 
moignijigcs d’dtonnement et d'admiration. 
du pubUo. 

; c ^Mi^Kf'd?^ublW%^|fftffif%^iiib^diffls?>igw3ap” 
l plns ' joli, -de' plus J extraordinaire imdme net;;autre£entMe/ima ae Vseralt dohannit 
que ces petite foyers de lumidre si flxS et et Auralt oonsUtudamdld vf^Vair * UnimT- 
si"oalme, st> oaressanto pour-le regard.) lange ddtonantt^n- aUumaht Je’beb !*oh : 
Nous sommes' habituds 4 nous reprdaen- produlraitnneexploiion.Onpeutsedemajit 
ter la' lumidre dleotHque 1 sous forme de der dommeht lefaddidehs&arriventinia 
foyers dblouissans,' sointillans, durs ;4 plussouvehtetobnmentisnrtouta'uddlmt 
l’oell , bruyans , ohangeant'.sans.cesse la oralnte de be dinger, qhin’a-rien d’imi 
d’intonsltd, aux tons variables et bla- posaible. n’a paaretarddleirapide ddvelon- 
fords. Ioi, an contraire, on< a flevant'Bol pementqu'a. pris l'usaga idugaz? L’habi- 
une'umidrequi adtd enquelquosbrtecivl- tudo- est Meh«:vraiment>una'. sdoonde 
llade, accommodde 4 nos habitudes,• miao 4 nature;. Aveo 1’dlO'otrioitd; .tfestM aulre- 
inotre portde; ohaque.beo dolalre comme. tnent -oommodo; ; Tous.vcrenlrez,, tous 
du gaz, mais comme un gaz qu’il.ettt fallu pressez' nn i bouton,i- et'.iamjofeu^Bdn^ 
inventer, > un gaz donnant .une lumidre allumette, toute la ' .'maiaon .a’dolalre'. 
d'une flxitd parfailo.-gdie ot brillante sans it y amieuibohdore; on fait -oe.lque 1’on 
gflner la rdtipe.-. " • ‘ jreut de'l’dleotriolld. .Appnyer, siir t un. 

Et quelle difTdrenoe avco le gaz I Elle bouton ou tourner ud robinet vous- sem- 
j ne rdpand dans rappartementr auoun blq-t-il trop exiger? Qu'4 oela ne lionne, 
prodult de combustion, ni adds .oar- vous ouvrez’ la porte de .l’antlohambre, 
bonlque nioxyde de carbons, qui vi- le beo dlectrique s’ailumera de.lui-mfime 
oient 1 atmosphdre, ni' aoide: sulfhydri- toub pdndtrez dans.Ie salon, lea lampes 
que, mammon aque, qui altdrent les pein- brlllent. les' canddlabrosijottent des tor¬ 
tures et les^tissua; elle n’dldve pas la renB de lumidre; vous entroz /dans.votre 
tempdraturo de l air et.neproduit pas cette chambre, dans vLotredablnet de travail.' 
ohaleursiinoommodeetstlatigantedugaz. ies bees - 's’aUument i'automalique'ment. 

, Elle supprime tout danger d'explosion Par cels seul que vous ouvrez la'porte de 
et dincendio; ellen’est pas soumise pen- cheque pidoe;.,vous obliges' la lampe 4. 
dantles frolds 4:des variations d’dclat Conner de la lumidre. M. Edison est .uni 
d^sagrfiables, ni & ces cliangemonsde pros- magicien. *-if» 

sion dans la canalisation,- qui rdsultent ‘ L’inveution/ dai physioien aindrieaini 
.fle la condensation de oertains oar- nous paralt-. marquer Una idrei nouvellei 
bares d’hydrogdne. Elle va. toujours dans les prooddds de l’dolalrage public : 
de sa marohe rdgulidro et Impassible, C'est en eflettun Bystdme absolumentl 
queUes que soient les intempdries des complet orddidb qui per-; 
daiaons; que le thermomdtrd desoende met uuo appUoaUon immddiato. il mdrite 
au-dessous de zdro, que le vent souffle de fixer,tout partioulidrement; ^attention 
en tempdte, seooue les arbres et .les ! < '• 

canddlabres, elle donne toujours la mdme \ Les premiers esdais de M Edison n>-i 
somme^de lumidre. Elle brflle intone • an m onicnt hT'anndS,t’dcholies expl 
milieu de 1 eau aussi bion que dans 1 air. Wencos d’dclairago dleotrlquo de l’avenue 
Elle est compldtomont^inaccessible aux ,de l’Opdra et deil'Exposltion de Paris par- 
influences extdneures. Que Advantages!: Ivint 4' Edison pendant qu’il faisait-un' 

: Vous rentrez chez vous. Aveo‘ le gaz, il .voyage aveb-M.fDraper4itravors>leB moh- 
; iaut tourner'le robinet; enflammer une Mtagncs-Rooheuses.lL'inVenteu^'amdrleain: 
allumette' et la lumidre so 'fait. 1 Heurtux javait ddj4 une rdputatioh f europ^enfae • 'on 
'encore, lorsque par.mdgarde on n’a pas'ljavaifadinird au'Champ-de-Mars sea ap-’ 

. ‘ . ... -i uj iv.jibi'.il .UiL-iOodi it 

I Sns^'rlglfiallt'dHeld^OTl^ld' 
hor ’ld '^tdldphone •4' pllo,. , le 
quadruples; oto. Pourquoi;* ini i 
tin son compagnon ,.trda.dml- 
leieh lui-mdme, . pourquoi nia-: 
;ous pas aussi le problOme-de- 
-par i'dlectrioitdl Edisbh 'tdfld- 
ues jours, etp dds son-retour! 
dBser de cOtd les tdldpbones et. 
iventions en prdparaUon : sa 
dtait prise; ■ ILse^mit (4'1'ceu- 
Uatemenfi aveo*>les'puisBansi 
exdcution .que: los. capitaliatoB,. 
Jnia savent meltre 4 da dispo- 
lommea'do sdenoo.> • 
futvite dressd: il-ne lui conve- 
nait paB do rdallser tout bonnement une 
lampe dlectrique melllBure queles autres; 
Usagissait de trouver une solution com- 
pldte do l’dblairage; maohines produc- 
u l ? c ^ d,ileolrlolt4 ' CODlinite8Soul ®' , rahies, 
distribution 4 domlollo; compteurs;' etc. 
J1 fallait en. un mot copier ■ le gaz, 
BUivre de tons points le ByBtdme acluel 
,ddclalrage,'qui estpassd dans nos 'babi- 
,tudes ( llvrer des> bees'de.huit ou.seizo 
bougibs comme ; les'beos de-gaz, faire 
payer le beo' dlectrique d’aprds la con- 
sommation d’dleotrioltd, introduire lalu-. 
mldre' dlectrique dan's les maisons pari 
des. ipanalisatlons,' .etc.' bref, adopter 
{les oomblnaisons'des Coinpaguies de gaz, 
{tout on assurant ■ au oonsommatour des 
javantagos oertains au -point de vuo dela 
{ddpense, des faoilitds d’installaUon et. dei 
la beautd deVla Jumidro. En moins de. 
deux ans. ce plan qiii eftt paru 4 tout au-. 
:tre inexdculable fut cependant suivi dei 
point en point et rdaflsd dans toute son' 

On- ne so fait gudro ici une iddo 
.des diffloultds qu’il a fallu vaincre, de la 1 
somme inoroyable do- travail qui a dtA 
liournl- pendantdos'moist ' on- a expdri- 
imentd nuit et jour air 'laboratoire' de! 
[Menlo-Park transrormd en : 'usine; on. 
compte par ccntaines- de-mille-les es-- 

^s^^sstssa? a^,itsar' ) s& 

table.surexoltdeipar deS entraves.-sans' (rao^ordeient.iest.dtrangld liilldpjouvo' 
oesSe renaissantes;!Lm.vention; e3t venue |beauconpi- de ..peine i pour: pqssw.i. les 

l^°4l'eu m r e “rdd S uUe Ueffsubitment 

eSKSSSi: a no jtrds.vif. lTouUo monde ^.w^ougir aiuei, 

■ Toutes les recbercbes du physioien; (sousbaotion d’uu-cavrant.jdleetrinue des. 
de Menlo-Park sor.aont .'d’abordiicoboen- platine. La tempdrpture engendrde' 
trdos sur la base du systdme; sur.llinven-. Sdpeud de la rdsfstgnoe iopposde m, cou-' 
lion d’un foyer lumineux- vraimont prati- Jrant pendant .son -passage .4 .travers. le 
que.AprdBqnelquesbdaitaUons.M.Edison jftl (t).. ■ - ■ . ■ I Jl( ,i , 

admit on prinoipe qu'ilifallaitabandonner, |___;_ . 

Jiour un-dolairago domeatique la i lumidre ' (i) u n’eat sans douto nas siinerllu do n,™ 
par. arc voltaique; trop dure :4 l’oefl et itionnet lci cnquelques.lisnes^tHxrar mdmoira. 
ndeessilant l’emploi : de baguettes: del c ls<«i»y«>ia 

charbon. . Avoir* 4 mettre -.dans . une. Susmsns cssmulel?:.i» la.forco Olcotro-moWoe 
lampe .chaque ..jour one provision-de ba-, 
guettes de-charbom est une-.ujdtion du- 

pompatiblo 4vec nos habitudes; o’dtaitiem du .cflumitr c'ost lairojco ea vertu.da. 

rovenir 4 la mdobe de nos .lampes.aveci 

cette aggravation qu’ili dtait eat la qaamlW-A’dlootrlque .foumie.dimsi.T.unlte, 
laronouvelerrsans oesse. IifallMt iniaginer. 

un'beo fourni8sant.dela lumidre 41a fagon. imentalSSrw dsns'le.conduoteu'r eaidsard-a sa 
des bees de gaz, sans.qu’il y eat:.iieu de- 

poccoperde.l’entretien: do l’appareil. On' | Ohmliflroavd’mathdmatlquani'ent qae i’interi- 
est naturellement conduit ainsi-;4. u’a'd- iaiW.d'ixiipourant dtatt proporiionnoltoi la.force 
mettre,poufila.solutiondelaquestion,que lt .. pr0 ^ qrl i° n , n | ll ?iL 1 ?if{t': 

la lumidre dleotrlquo-produite..par. in-. A ;• t " : ‘■■ -■■■■ 

candescence, .et non plus, par are vol-: . . i R 

talque.i' ;• n • a . - u'. : - Jonlojidoson cOtAafaitvolrnae la quantlW, 

! -QU’est-co que la lumidre par ineandes-. te'3?lSiiM U u e . 

cen'ce?Il faut se rappeler que tout courant rant.Ma rdsistaneo du circuit .et -au. tetopa;-co 
dlectrique traversant un conduoteurmd- “ prlmo 1,11 : ' 

.taliique dehauffe plus ou moins oe con- ! 1 . • 

ducteur, on raison de la -diffioultd qu’if gStoSiim^pOTAdeTrdsIstocrqSi 
;dprouve 4 se,frayor'Un cbemin. Le frotte- oppose au passage du courant et do la quauUtd 
m.ent, comme onsaitj engendre de-laoha-: d n' r ;v. Ta . 

Ileur. L’dleotrioitd, en -ciroulant -dans -lei lleur Urdedela relaUpnpps6eP‘ir Ohm,ouoblieut: 

rndtalj'-y renoontreisans'cesse .des.obsta- j • • f- : - . w = l E ; .e- : ’ ’ - 

teles4sapropagatlon; elle frotte oontre' o’est-i-dhequolabha^mpngendrde ou.lo.tra- 

11 n’oxisto pas de moyen pluB commode sur lea telntes transmlses. On comprend jverre; pour augmenter l’dolat,'on Mfiait |j^e.le-^da toe ' 

pour transporter brusqucmont sup un faoilement, d’aprds ce qui prdcdde la iombor aurle mdlal. grains igi-alns du 

point donnd une grande quantity de cha- ndcessitd absolue d’dlover trfea haul la oharbon pulvdrisd. Au bout de peu de diffleultd, en olTet, do malntenlr le vide 
leur. On peut chauffer 4 volontdun fil, un tempdrature, si l’on veut avoir une lu- temps, leplatine dtait mis hors deser- mdmo dans des eapaees. on apparence 
mdtal en quelques instans. Tout derate- midro intense et comparable 4 la lumidro vice. ' „ herndtlquement cIos. 

rement 4 l’Exposition, devant plusieurs du jour. Le gaz donne une lumidre peu En 1846, un Amdricaln, M. Starr, au- Lea efforts et les-tentatlves do nom- 
membres du jury, M. Siemens, de Berlin, intense et jaune rougeltre parce quo la teur d’ouvrages pbilosophiques, obtint de breux invontours . s.elalent sans cesso 

en tournissait une ddmonstration remar- tempdrature de la combustion eat relati- Peabody, le grand philanthrope, quelquo heurtds 4 des diraoultdB qui avaiont flni 

quable. Il fit passer dans un creuset id- vement peu dlevde. Les lampes 4 aro argont pour construire un lampe 4 Incan- par falre considdrer tonlo solution comme 

Iractaireun puissant courant dlectrlque 4 voltalque produlaent une lumidre viola- descenco dans laquclle le platlne dtait impossible. Id, les lampes ne tenaient 

traversdes morceaux d’acier. En moins ede, parce que le oharbon qui se bidle romplacd par du charbon au miUeud’un pas le vide; 14, les cnarbonB so brisaient; 
de quinze minutes l’acier dtait en fusion est 4 une tempdrature d’envlron 2,000 de- globe de verro vide d’air. Le charbon en ailleurs, lo platlne on 1 iridium fondalt; 
etdonnaitunbeaulingotde plusieurs ki- grds. s’dchauffant produisait une belle lumidre, ailleurs encore, les prix de rovient dtalent 

logrammes. La quantitd de charbon dd- On dovine aisdment, aprds ces ddtalls, ot comme 11 dtait dans le vide, il ne pou- tropdlovds. . ' ■ ! • 

ponBde par la machine gdndratrice du cou- comment on peut produiro de la lumidro valt s’oxyder et par suite so oonsommor. La question endlaitarrivdodcepoint peu 

xant fut trouvfie de beaucoup inffiricure par l’mcandeBcenco d’un conducteur Starr installa un candfilabre & 2G lumiftres sallsfaisant, quandM. Edison somltk 1 ceu- 

& cello qu’il eftt fitfi nficcsaairo d’employer de l’filectricitfi. II suffit de substituer brus- pour symboliser les 2G Etats de l’Union. vro. Scion son habitude, etcommo pour so 
pour fondre directement l’acier. quement fi. un fil un pou gros un fit’ trfis Le oharbon no se consuma pas; fairelamain, 11 commcnga par rfipfitor les 

. L’intcnsitfi lumlneuse croit trfes yite dfilifi; le courant fiprouve uno finormo r6- mais des particules charbonneuses, essais de ses devanciers. en les amfilio- 
aveo la tempfiralure. G’est un fait curieux Balance qui porte la tempdrature 1,600, entralndes par le courant salissaient rant. II employa. des fils de .platlne, des 
que tousles corps solides, quelB qu’ih 1,700,2,000 degrds; la tempdrature s’dlfive le globe de verre et la lampe dtait vite fils d’iridium d’une extrfime finesse pour 
solent, commcncent 4 devenir lumineux k d’autant plus haut qne la rdsistance au hors d’usage. augmenter la rdaistance du courant et 

la mdmo tempdrature, vers 980 degrdB. passage augmente elle-mfime notablement En 1849, Pietrie remplaga le platine par suite l’dclat de la lumidre. Do gros 
Dds qu’une substance dmet un pou de lu- dans un conducteur trds chaud; lo fit par un mdtal ne fondant qu’d une tom* fils amenaient le courant jusqu’d ce che- 
midre, on peut fitre certain qu’elle est a mince devient incandescent et dmet’une pdrature encore, plus dlevde, l’iridium. veu mdtallique rould eii hdlice au milieu 
une tempdraturo de 1,000 degrdB. Mais en lumidre intense. On peut encore citer les lampes k platine d’une petite sphdre de verre prdalable- 

soient, commcncent 4 devenir lumineux k d’autant plus haut que la rdsistance au hors d’uBage. augmenter la rdaistance du courant et 

la mdmo tempdrature, verB 980 degrdB. passage augmente elle-mfime notablement En 1849, Pietrie remplaga lo platine par suite l’dclat de la lumidre. Do gros 
Dds qu’une aubstance dmet un pou de lu- dans un conducteur trds chaud; lo fit par un mdtal ne fondant qu’d une tom* fils amenaient le courant jasqu’d ce che- 
midre, on peut fitre certain qu’elle est a mince devient incandescent et dmet’une pdrature encore, plus dlevde, l’iridium. veu mdtallique rould en hdlice au milieu 
une tempdrature de 1,000 degrdB. Mais en lumidre intense. On peut encore citer les lampes & platlne d’une petite sphdre de verre prdalable- 

chauffant touioms, l’intenBitd de_la du- Cette lumidre est moins dblouisBante de M. de Changy, b. charbon traltd par ment vidde d’alr pour empficher l’oxyda- 
midre saccroltbien plus quo l dldvaUon quo la lumidre qui jaillit entro deux ba- l’eauv rdgale de MM. Grenoer et Staite. tion du mdtal. 

degrds; le guettes de charbon rapprochdes; olio Puis, les lampes h incandescence.furent Mais les fits fins fondaient d chaquo 
f la “ n ° 4m * el r f°' 8 plus di iumifero qui n’est plus violate, et cite est compost abandonees. En 1873, toutofois, un phy- instant; l’inventeur amdricato les em- 

ril I'Xt i0 ^ 0D l miXlaa ' rouges > i aaaBB . et0 - Bieien russe, M. Lody’guine, r^lisa une pSeha do londrc L^ 

11 y a Wealongtempaquo l'iddeeatve- nouvollo lampe4oharbon rondu inoan- venait trop intense la spiralo onsodl- 

dSs ortnee - 4^ 300 deS ianne^i nu0 ^ 1 utdisor; seulement, l’aro voltai- descent dans le vide; olle fut app'ortiSe en latant, louehalt ligdremont un pollt bu- 

. e 5 r A 8 ’, ,a ?i^:.. quo donnant beaucoup plus delumibre FranoeparM,Kosloff(2).En 1874,ollovalul toir par leauol s’dXn^itrexeJs do enu¬ 

re, on ne pensait pas 4 son invonteur ur 
e’en servir; de pluB, Sciences de Sab 
ux pouvent atteindre micro que nous ! 
s temperatures sufff- tr6a belle; malhs 
•e une lumiCre intense, d’attaclio entro lei 

tS7,s.Sf.s5.K;r5; s* rsirlsr« b ! 

l X “ Waaot ?' La “ s sntes pour^ImeUre une^uiSSe intenro! au C?^ 8 ! 81 "' M al ^»reusemeut, 

chaud exereeanssr une eertaino influence Le platine seulement on les mdtanx qui et les ffls de platine qui lour apportS eence le nkuip, 0 °T •‘T 8 diB< Tf e “' 

- -J__— 1 accompagnent dans seB minerals, pou- le courant se rompaient sans eesso It ); ®“ oe ’ , , p ," ne sal) i8saU une moditloa- 

vait6treemploy6 et encore, si.le cou- lnmi4re eotlUlt^cher ^ .torn mtfMmWro et s 6 brlsal^ lorsqu’on 

vSo’ncl enirala PM°T,'rOTor- rant 6tait mal i4 b1*i il fondait et 4 la lu- Nouvelles tentatives en irt- faiaait passer,do nouveau le courant. 

U<mnello(iia{SiAa-«ii«rtSi4 produfto ot4 miCro succiSdait brusquement l'obacurite. M. Konn, on 1876* par M Bouhnulne Le platlne eat allid dans bob minerals 

D l s . 1841 - ua A-nglaia.M. de Moleyns, et par M. Sawyer ™l 4d autres mdtanx: Id pallaiUnm, le rbb- 

trayalftst proporilonnel a““oSSne dsnlte ot a oomhvna une lampe aveo spirale de pla- ■ _ y ^ ' ll0a l 1 Mlum, l'osmliim, le ruthdnium. 

b prwtton w hanlaar de drain. ^ da ” 8 ^ Ut globB ^ ~ u,mo XV. ' ^s^rboS 

del4 encore de ce ddgrd dij4. exces- 
sif. Edison voulut les soumottre 4 l’d- 
preuvo; partonj ailleurs . on n'aurait 
pas mfime ou la penaSo d'ossayer. Cob 
pdtaux sont d’une tcllo raretd qu’on^ ne 
peutgudreB’en procurer, mdmodprlxd’or; 
maiB au laboratolre dd Menlo-Park, 11 
faut bon grd raal grd pouBBer les investi¬ 
gations 4 fond, pour dviter de passer 4 
cOtd d’uno solution possible. II y a 14 des 
collaboratours ddvoud3 en aussi grand 
nombre qn'll lo faut, ot les capitaqx nd- 
ceBsaireB pour no reouler dovant aucune 
ddponBe; o’esl la plus colossale « usine 4 
Inventions » quo l’on puisso imaginer. 
M. Edison tenait 4 ces mdtaux. II n’en 
exists pas dans le commerce; 11 dcrivit 
pour obtenir urn dohantillon de rho¬ 
dium au plus illustre gdologue des Elats- 
Unis. Colui-ci lui rdpondit, sous uno 
forme qui laissait dovioer l'ironic, qu'illui 
en transmeltrait bien volonliers pour des 
milliers do lampes, mais qu’il n’en exis- 
tait mfime pas un quart de grammo aux 
Etats-Unis. ’ . ' : 

Edison ddpdoha immddiatement un de 
sea aides dans la Carolina du Nord, ob l’on 
avail ddj4 ddcouvert au milieu de pdpites 
d'or quelques minerals do platine, aveo 
l’ordre de rapporter coftto quo cofltc plu¬ 
sieurs kilogrammes do rhodium, d’os- 
mium, etc. Cinquanle ouvriers sonddront 
lo sol, on lour laissait l'orjet ou no lour 
prenait quo les minerals do platine. Deux 
mois plus tard, Edison avail 4 Menlo- 
Parkplusieurs kilogrammes de rhodium. II 
s’ompressa d’en envoyer un kilogrammo 
au plus illustre gdologue des Etats-Unis. j 
La devise est celle-ci 4 Menlo-Park : 
» On pout co qu’on veut. » 

Lo rhodium cepbndantno fit pas l’adaire 
plus qne le platine; il so ddsagrdgeait 
anssl sous l'inflaenco des hautes tempe¬ 
ratures. Alors on essaya do reoouvrir les 
fils > d’oxydes mdtalliques pour diminuer 
les pertes de chaleur par le rayonnoment 
ot pour voir si, aveo cot abri oxtdriour, 

les ills se ddsagrdgeraient moins vite. On 
ddposa 4 leur'surface des endults d’oxydes 
mdtalliques, de la magodsie, de la ebaux, 
etc. Mfimes insuccds. 

Il parut evident que 1’on n’aboutirait 
pas dans cette voie. Lepasse dtait liquidd, 
on pouvalt allor en avant d’un pas cer¬ 
tain. Pourquoi lo platlne se ddsagrd- 
gcait-il ? Il iallait rcmonlcr 4 la cause. 
Edison, en physiciim habile, rccoonut 
que lo platine, comme’ d’ailleurs la plu- 
part des, mdtaux, renferme dans ses 
pores de l’oxygdne et meme d'autres 
gaz (3). Une tempdrature dlevdo et pro- 
longde au milieu du vide chasse les gaz 
de la mas3e. Quand on emploio lo platine 
qui n'a pas did ddbarrassd de ses gaz, la 
obaleur les fait luir, maiR lls reviennent 
pendant lo refroidlsscment et ce mouve- 
ment de va-et-vient altdre le mdtal. Le 
platlne purifld do ses gaz et lesautres md¬ 
taux d’ailleurs acquldreut des proprid- 
tds toutes nouvelles. Le platine notam- 
ment, qui est un mdtal mou, devient dur 
et elaslique commeTaoier. Cette ddcou- 
rerte trds importante permit 4 Edison de 
rdaliser une prpmidre lampe a incandes¬ 
cence, brillant d’un grand dclat et durant 
do trds longues heures. 

On devient difficile ponr soi-m6mo 
qu'aud la rdussitc couronne les premiers 
efforts. M. Edison so demanda si, en trai- 
tant le charbon comme un mdtal, on no 
parvlendrait pas 4 lui transmeltro anssi 
des qualitds exccptionnellcs de dureld 
et d'dlaslicitd. Dans" ce cas, le pro- 
bldme so simplifierait : un fil de char¬ 
bon prdsenterait' de trds grands .-wan¬ 
tages sur un fil mdtallique. Le prix de 
rovient mis do cOtd, le oharbon pos- 
sdde 4 tempdraturo dgalo un pouvoir 
rayonnant de la lumidro pins grand quo 

tudo. 0 I| 0 OBt C biou dimonfrd D auj r ourdMiul "quo* les 

lo platine; la capacltdilaUirlfique' duchar-1 
1)00,1 r,c’est-4-diro' 8on>'pouvoir :de .s’d-i 
chauffer.pour 'atteindrq\le ’ mdine ,do- 
grdde tpmpdraturb," estv^auboud inpin-;' 
dro, do ,'telie 'Bbr'te jua mmSma; quaif 1 
titd'de o'Sloriquei.dldve .le'cHarbon: & one 
la platine. Dono inoiridr'e ddpense' d’dleo 1 ' 
trioild pour la mfima lumidre. Do;plus, la 
rdaistance qu’oppose'le charbon au 'pas- 
riage du oourant eat enyiron 2B0 foia cello 
du platine. Dorie encore on- peut dlevcr de 
deohbfld tempdrature, o’est-d^dlrel’dclatl 
Enfiri lo platine prdaente Tinc'onvdnierit 
<i r - fondre facilement. Le’ charbon est In- 
luiible aux plua liautes temperatures' 
li'mnuep. .■ ' . . 

' 11 ri’eri fallait pas davantager.poupique. 
linventeur amdricain commemjit donou- 
velles recherches. Mai's -edmment pb- 
tenir un filament de oharbon ,'ausBl, ddli'd 
et auaai rdsistant que du . platine; .‘assez 
ductile pour Gtre courbd Bur lui-mdme ? On 
prit ’du-graphite:,' 'on; le^ >n61a-i ,du 
goudrori; 'bn iritroduisit r let '‘iridlarige 
dans un canon-de fusil, et l'on chauffa 
k l'abri de l'air. lie oharbon produit ainai 
dtait trd8, malldable, ddcoupaill 
mal. On raconte qri’un'jburj !en allu- 
mant sa cigarette avec.du papier cnrbuld, 
Edison remarqua quo le papier, ddbar- 
rassdde hcb cendres, produisit an fila¬ 
ment de charbon assez.rdsistant. II ,’erit 
l’idde d’expdrimenterdu papier carbonisd. 
H cBsaya mdthodiquement de loua lea pa- 
piers possibles; il'en fabriquamdme avec 
des inatidres Bpdoiales, notammentavee un 
coton Boyeux que l’on rdcolto dana cer- 
tainesiles, prds de Charleston. Le char¬ 
bon vegetal obtenu aveb ce papier eat 
trds homogSne. et .aaaez rigide. Ddbar- 
rassd comme le platine dea gaz‘ contends 
dans : sa masse, il acquiert de l'eiaslicite 
et: do la tdriacild. Cependant,'.'quand le 
courant pasBait, il arrivait souvent que'i 
l’dclat do la lumidre variait; l’inoandes- 
benoe'manqualt de fixite., ' 


iridgal;' icii.'le:fllambnt'eBt plusddnse; Jld 
'plus blalrsemd/souvent les • fibres ’ sont 1 
ebupdes; aussl.IebburanVtraVerdaitindga;; 
jl&oent’ lea diffdreriteS' portions ’du.ohar- 
:bon; la fdsistance charigeait; 4 trayers la 
l&ass'b; la lundfe-e 'devait' .mariquer d’bo!-' 
mogeneite; Conclusionlabaridonrierle pa¬ 
pier et toutfeutragb’artlflclellement ob- 
'ttlnu et adopter sane hesitation'dea fibres 
naturellca oh le travail, en quelquo sorte 
gdomdtrique do la nature, fabriquo ( 
tissue rdgullers et d’une contexture abi 
lumcnt symdtrique. , ; 

Onsomit on qudto deVloutos les ease 
ces de bois, de toutos les dcorceB que l’on 
'put rdunir; "on ” envoys' des' 'exprds • eri, 
Chine, au Japon, auX Indca, au Brdsil. 1 
Un botanlste de valeur, M. Sdgador, ex¬ 
plore le bud dea Etata-Unis,; il arrivait & 
la Havana quand il fut emporte' par la 116- 
Vre jaune. Un autre prit sa place. Ces ex- | 
'peditions, pousadea vigourouaement et 
comma'de vive force pour trouveraim- 
plbment dea dooroes & carboniser conve- 
nables, semblcnt appartcnir. au roman; 
elles sont trds rdellcs eppondant ot don- 
nent fort bien la mesure de l’dnergie dd- 
plbyde par 'l’invcnteur amdricain. Il lo 
iaut! So head] ; 

Dea monceaux de bois; do plantes en- 
combrdrent bientOt lo laboratoire do 
Mqnlo-Park. Les premidrea experiences 
firent dcarter beaucoup d’esaences, et par 
eliminations auccesaivea, on finitpar con- 
aiddrer comme parfaite la fibre du bam- 
bou. M. Moose partit pour la Chine avec 
la mission dc rapporter tous les speci¬ 
mens de bambou qu’on a l’habltudo de 
travalller. il en fit une collection consi¬ 
derable, et Edison, aprda de hombreux es- 
sais; donna la preference & une eapdee 
particiilidre de bambou du Japon. Sa fi¬ 
bre eat oxtrdmement rdgulidre. et se dd- 
coupe facllement.* On voit a rExposltion, 

iPdri.encbfc 1 ? et 1 iiSi, fUaBtena:' 4618’ Us 4® J J 
coupdB avant tffltrei.oarboniads. Ce - sont 
des'm'adhlnes |ijuiiddc(>Wl? n .6 n .t: 1® i 
bon; ddtabhMitUeB^bres et, lea enldvent 

,;bur' : une i ep8isbdtir‘convenable,-aveo une 
rdgularitdj uneidextirlte inervollleuBe. 

-'-Ed geri#ral,"ppur i lw ■ appUoaUona cou-1 
ranies, . le filani'ent feesure 1/S de millt- 
mdtro d’dpaiBScur : a\ir 12 millimdtrea do 
largenr. : .n';eat recourbd sdr lui r mdme de 
manldro i prondre la forme d’un U. trdB 
allongd. On intrqdult, onauite ddUcato- 
.merit ce flla!ueiit ;.c6rirbe dans' un petit 
oreuaet do for; on,l’prigago;dana une iral- 
ririre qrii dppuafe'sa .’forme. On Imet;alnai 
les filamens par.mUl^ersV dans, ces.sortes 
dd petites boitbs en fer; on empilo’lea 
oreusets.lealpns.sur. les laulres au milieu 
d’un four. La rparboriisatipn est vite ob- 
tonue ; on-retire les*- oreuaeta du feu, pt 
quand its se sont;jrefroldis, on trouvedans 
oha'que ralriure,’ ilapjafee dps.filaihpnS do; 
bambou, un fil de oharbon .vdgdtal extrfl- 
memerit solide;ldur'et 'd’une flhesae' , re- 
marquable ;'lo fllain’ent S’eat rdduit .i la! 
grosseur . d’up orln' de cheval.' 

. Il faut proedder cnaulto k la,mise en. 
place du Si de eh’arbbu dans le globe de 
vorre. La formcleri courbe allongdo' du 
condnoteur .Vo'arboniad in al ddtermind la 
s similaire du gfobe trsmaparent. C’est 

- ; exaptemeritcqinma.a8p.oot quo poire, 

ou sil’ori^'evba'e.terinlne par 
une portion apbdrique. 

.Deux fils de-platfrio destlnda k feira.en-1 
trer le courant dans la lampe aorit empl- 
tda dans de verre; ils sont dlec- 
trlquement rellds au ill-do charbon par 
deux petits ddpdls obtenua. galvaniquo- 
ment et de. section:'relatlvement large 
pour que le courant r -.enpassant, ne lea; 
irigdriieusP'dvite’les rdptureS qrii'lae pro- • 
duiaalent.jusqn’ioi !aux points d’attaohi 
dn charbou . et dea-iHa’de platine, et lea 

dilatations:sontiasaez jrdduites’pour quo 1 
•tbut le' syBtdmo conserve '■ Ba boliditd.'Le 
tpbe-aupport;dea fils etdu charbon est iri- 
tpoduit aprdB coup dans la. poire eri 
verre, ’soulllde k part., ,0n soude tnbe et 
glqbq, et la lampe eat prdte i dtra vldde 
d’air. Hour cela, on a lalasd un orifice arir 
lo Bommet du petit globe. On fixe cet ori- 
flee sur une pompe & mercrire deatinde k 
enlever l’air. 

Au ddbnt, M. Edison employa lea' pom- 
— "—ou Springeld dans leaquellea 
• l’air d" 

__lul et fait lo vide dorridre. On peut 

pousser ainai la rardfactlon trds loin. On 
veraait le mercure k la main dana l’appa- 
reil; manipulation'pdnible ct dangereuso 
qui amena uno intoxication merourielfe 
grave chcz plusieurs dea aides de M. Edi¬ 
son et chez M. Edison lui-mdme. MM. Bat¬ 
chelor et Moses, les deux collaborateurs 
trds habllea du physician amdrlcaln', 
nous disalent dernldrement, qu’il avail 
falln travaillor pendant tout un hiver 4 
lajempdrature do 80 degrds au. mi¬ 
lieu d'nne atmosphdre saturdo de va- 
peurs „de meroure. Edison' modifia les 
pompea, lea simplifia et paryint d .se 
mettro'd l’abri dea dmarialioris mercu- 
rlelles. Tout so fait! aujourd’hui !com- 
moddment; indnstriellement. Plua de 
800 p'ompes travaillent automatiquempnt, 
regulidrement, produisant le vide le plus 
parfait qui. ait dtd encore obtenu; 11 est 
trds supdrieur en effet k celui que donne 
la mefileure machine pneumatique. Une 
lampe.vidde d’air aveo la machine.!pneur 
matique a deux' foia* moiris 'd’dclat que 
lorsquelle eat vidde par la pompe Edison. 

Pendant que la pompe retire l'air, on fait 
porter k l'incandescence et chasser les gaz 
qui pourraient reater emprisonnds dans 
leurs pore's.; Ces gaz aont enlevds aveo 
l’air. Celte opdration^a pour but, oomme 
nous l’avons dit, de communiquer u— - 1 
aistancei; qne aplidild et-une-homog 

coruiiddrabies an filament charbonneux. 
Autremeritjil ne .aupportejiait quo peu do 
temps ■ l’incandeacenoe. Le oharbon. de- 
vient rigide'pt ' teriace comme ' uri' fll do 
platine. Nous avons jetd plusieurs 1am- 
pes d terra eana'les briser:... Verre et fil 
rdststent k un choc aaaez grand. Il faut 
que la lairipe tombe du cOtd de son sup-1 
port en .ydrre, pour que le charbon:se 1 
rompe au point de'contact aveo les'fils de 
platine. '- ' " 

. Le vide bien fait, on feme l’orifice dri 
globe i la flamme et l’on suspend le pas¬ 
sage du courant,..La .lampe est prdte 4 

A Menlo-Park, maintenant, les ate- 
..Brs de fabrication, sont eri pleirie ao- 
tiyltd. Unq soixantaine d’ouvriers prd^. 
parentsans reldche jusqu'4. 2,000 lampes 
par iour.,Ladurde ducharbon n'est paa; 
illlmitde; il suhit 4 la longue upe sorte 
de cristallisation, qni amdne encore sa 
rupture iristanlande; mais en moyennei, 
un fil deco oharbon vdgdtal pent aervir 
idant 1,000 ou' 1,200 heures: A;S heu T 
d’dclairage par jour, la indmelampe 
peut dono fonctionner pendant une 
moyenne de 6 4,7. mois. Or, ello revient 
4 peu prds 41 fir. 60 o. Quand elle est 
risdej on en est quitte pour'la remplacer, 
comme en ce moment on remplace. les 
verres de lampe. On ddpense bien plus' 
do verres par ari qu’on ne ddpensera de 
lampes'I , ■ 

Le oharbori en forme de fer 4 cheval 
trds allongd dolalre dans toutes les direq^ 
lions'; on' peut par "contdquent' dlBposdr! 
la lampe par-sori gros -bout ou : par aa 
pointe; peu importq; elle est hermdtique- 
ment closo ct par consdquentperit brfiler 
dans l’eau, dans dea atmosphdres vicldes; 
dans lea mines 4 grisou, etc. La quantitd 
de iomidre engendrde ddpond tlu .’courant 
et dri- fil de charbon; il y a avantage 4 ne 
pari augmenter outre mesure l’iricandes- 
ccnce du fll; on pent lui donner un dclat 

;, mais i’mil-es.t blessd-qt.lal 

jdurde du fll est dimiriudo. if!'' -Edison 

g ! -"mbind'Ies sections des fils. et ; la~force; 

courant, de faqori que 'ch'aque'! petit; 
B.ob'o donne une interisitd lumirieuse 4 lax. 1 
■quelle nous, soyoris ddj4 JttM^ds.',,H- a'; 
jprisjpour'type', comme lorijorirs, l’dclai-’ 
■ragqau gaz. Lea lampes donneqt 8! ou itiV 
ibougieB, c;est-4-dlre 1 on 2' bees Carcel 
>ldu typerdgleirientaireV 'C’est sufflsant. Lai 
luinidre est bonne et la' tompdrature: do 1 , 
l'incandescence 1 pouss'de seuldmerit jus-.; 
qu’arix radiations blano jaune;.comme ! 
teinte, o'estpresquoletondesbecsdo gaz. 

Au dernier easaidel’Opdra, on aurait pu del 
.prime.abord confondre les deux lumidrcs.!! 
Acfltd des foyers dlectriques par are vol- 
talque, les nouvellea lampes semblent . 
;dmattro par contrasts urie lumidre jaune. , 
Autant l'aro voltaiquo jette des teintes bla- p 
ifardes sur les qbjets,’autant les lampes 4‘ “ 
'incandescence projettent une lumidre do- ; 
,rde>, agrdable aux regards. Lespromeneurs 
exposds au rayonnement de l’arc prdsen: 
tent une p41eur excessive: le visage eat 
livide. Cet inconvdnierit/diBparalt absolu-; 
ment avec les radiations dmiaes par l’in-,; 

\ - Telle estv la- nouvelle lampe. Il *ne : 
aniDfpas d’avoir fnventd. uni bon foyer 
luriiiueux. A de tares exceptions, prds,: 
personne pour le plaisir de s’dclairer 4 
la lumidro dlcctrique ne s’amrisera 4 .ins¬ 
taller dans samaison des machines 4 va¬ 
pour ou 4 gaz,' des riiaohines dynamo-' 
dlectriques, etc. Il fallait encore ici se rap- 
prooher du giz, dtudier les prix de revient, ; 
combiner une canalisation pour les rues/ 
une distribution 4 domicile, etc.; pro- 
bldme complexe s’il en fut jamais. Nous 
dirons dans un prochain artiole par quels 
moyens M. Edison est parvenu. au but, 
comment cette foia encore il a rdalisd sea *- 
projets, et fait passer ce qui hier encore 
orit dtd qualifld de rdverie, dans le do-:, 
maine des rdalitds 1 • 

Henri uk Parvills. 


exposition DfitECTMcrrE'd 

' "j ;■' /"II.' .-’• > 

Nous aVonS'aScrltJa-lainp'o' He’Vfi Edl-i 
son. Uno lamps, si'oxodilenlo ijii'elle- soft/1 
no cobslituc pas 4 elleseulq un-systemr 
complet d’bclairagfe j'cbn'esf qii’ninoueigd 
cssenliel dans l'Cnsemble. On'no ntet'.pagi 
d’61ectricitb dans tiuolampo comme od y 
met do 1’huile. La production bconomique 
de Tblectricitb exigeant des machinesen- 
combrantcs,' il est evident quo pourfafre 
pbndlrer lenouvcrbclairage dans les-mat- 
sons, il est de toato ndoessitd' do'.-le 
rcridre 'commo'de'iet' d’obligcr' les'cou- 
rdns: blectriques : 4' venir d'enx-mbmes 
dans les lampes, oomme ence-momenl'le' 
gaz arrivo' jusqu’aux beos. 'M. Edison'a 
rdsolu co probldme, ct nous allons ossayor 
d'expliquor sommairoment cotamenfil 
fabriquo l’dleolricitd par grandes qddnti- 
tds, la canalise et la distribuo 4'domicile.' 
Nous ne saurions' trop rdpdler quo rioub' 
ne ddcrivoris pas ici les'ddtails d'un’sinit 
plo projet plus ou moins aujet- A'cautiouY 
mais bion un-systems exdodld ct Jirei i 

ireilairdaiisSs; pMts’ &'dtre'pbs'bs, dabs lat 
| aalld'EMsbh? an'Palais‘des ; Gtiatttps*'Elya 

Ws 1 '® V: 1 . . r ' : - a'w 

; j 

■UOn qnird • l 8 s"a 6 n 3 uoleurs'i‘" bmpCpiierip- 

lj ‘ -Le'raccord -eiilre les • oonduites -de-la- 
ri J° ®t le tuyau d’acods des ‘maisons s’o- 
ipdre r do; la. mdme'manidre 4 Iriivets uno 
iis _ ;iL.-"*lr, 01 to_ dgaletaent munio do la^lamo : dd' 
PPttr plub do edbu4 1 
jrlM. Enfld'les'eohdti'etdurs parlioulicrsdc 

----- ■tra®> , eK.'va'"s6us 

‘ ^ aUl Vi SUi- 

|venl l IB4.-' T arlbrca prinoipalbs; ! sdr di 
ipremler rdsoauf on grbfle 1 des tuyaux'de.i 
moindre diambtrb qui : lbngent ; 'les ;/ rt'eii l 

I trAnsversale's ‘-et 'enfla’ s'ur-chaoiin 1 d’eux I 
on nranbbe’des' tuyaind %itcoi;e plus petlta- 
jqul dbnnent ffcijis' an gazdanHohaque inai-, 

son.-O’ost ce'mode de' ; ban'allsallbn :i qul a ! 

jssw^tssgw.-s 1 *;^ 

i ‘.'®f ,i j 1 ? s S' 0 ®' uain «.' : o«n'faio'^paricht-'dei’ 
iconduitos'maU'reBses'' qui'-fodt'raybnnei'j 
.dans toutea ISa raesiSes cdnduHes secou- 
daires, sur lesquellesso' greffent 4 lenr 
itour les conduoteiirs de petite section 
'qui pdndtrent 4 domicile. En 'apparenoe’j 
l!L e ,!u, 0n l U “? s pbur l’dleolrlbltd-sout serin- 
iblables aoeUos -dri ghz.h’cBl&jirSs'qiie leW 
iidiamdtre'dsl extrbtnement rCduit ties plus 
•grasses ne ddpassont pas : le diamitre dd 
!bras.>-Ce<sont audsi des' tuyaux.'mais'dcS 1 
' tuyadx quVau lieU d'etre Preux, renter^ 
ment deux tiges do ciiWr'e pur domt-oy- 
lindnquos, o’eat-4-dire plates d’un c6te, 
rondes de l’autre; si l’on rout, une tlge 
oylindriqud/ 'sciCe jjah’ le ' milieu'dais 
toutenalphguenf/fces’deux' trltigle's pyM ; : 
lftles qul so prolbngont 4 travers to^te'la 
canalisation sont empllies dans t«* mas/ 
tlc -isoldnt 'de compisilion - ^ AWati ,vlV 
'pent reinplaocr 'la gulta-pej 

oSWftM bont’arqiSfl >ras jjrbs mfflo 'lb' 
mbdiuin do la^main; los'conduotcurs d’t 
obs dans ! 'le4 tnaisbns, 1 oomme ;le pe... 
doigt. Les raboordsChtre les oonduotenrs 
de'diverses'SSdttoift'b'bpebbttt foiollbmeht; 
ATohaqUe orolBemint" dB '’rdfej ldar luyaux 
penitrentidkndiirie boIto irilorpoBbo dans 
Ht%a‘nalls4UoiS'ti J e9. trihglBs''de 1 Cuivro' 
s'y- • mbntfttft'n"‘nlf a adnS* VldWrlburJ 
[[On rello- par^bliciHtfcbB 'metaiuqdbs ! le 
d alter au- [conddbtbur 'siml- 
* , 6btfadlte’ ; WaUreBse'(: et 'de 

ibomblbguodelif dquaiflle ;% p!-rembrin- 
IjOhement est fait;-ponierolsda liaisonn’est 

pas direbte; ell* bst^Malise’c potir les' 
fdedx'obndublbuta A'rnTiXtfViti. 

une lame de ploniKIl’poarralt'sur venir 
I eOet quo; pouf 'nUa cdusb'ou pour u... 
lautre,' ICboiirktit eiectrique lransmla de 
1 dslbe- acqult bradquemebt ime intobsite 
cxsoplionnellef. Cette’inteiisltS serait snf- 
;fldanta;'pour Blbver-donsiddrablement Id 
itemperature-d'nne •portion- des'eonduo- 
toftill^^iitar'aswjiJttieir-'-ltitjniajre- 'Iso- 
;lahte et »urtqur'pon r ;touglr par contra* 
'm 01 Jfnn«' Qt ? '^.^“mnnication dans les 
si ' c ® H '®!» a sb'tVonfalent prbs de 
inoendie se- 

Dan‘if. n « d0a !®^'“’,Ed* 8 on'a pensB 4 tout. 

IT ... . ‘ 

Irlqiiequi so produi ’ toujodrs' quand -bri 
rtd^t 4’de-tlmpid»' rotipl-lebduraht.- " - • " 

nls'isoles pdr dncolon point 4 la oeriiso - ’ ' rf 

! et qul rayonnont 'dads 'tons les iappari D ^ n ®v I ? , sa,1 ° Edison,.,po,.mttoneil 
tec4ens. ' * <»«"* ■ 


' Les lSiftpes''sont disposdes'sur des lus-' 
'Ires, sur des candilabres, sur des appli- 
Iqnes mobiles, snr'des chandeliers. Dans 
tousles casi'leur liaison avoo les ills est 
tbnjour3 ''rBilisde 'par lo mfimo mbyeri. 1 
L’extr.emitd, du globe do verro est lutdo 
avco du pl4tre dans une sortod’anneau 4 
deux viroles do onlvrb. Un dos'His est en 
communrbation -avec une‘ des viroles ; et 
■le second-ill reU6 4 l'autro virolbparfaile- 
teent isolde de la premiire; on retrouvd 
.encore ici 4 l’intirieur do l’annc 
enpport-un ill de ploihb qui sert 

.'trait, d’unibn entre lc fll d'acobs du c_ 

rant cl la virole qui Btablit la comraunl- 
calibn avec le fit- de la- Inmpo. En casdo 
jbesoln, cn fpndant, il couperait le circuit 
ot 'Cmp6oherait le courant do ddtdriorer la 
lampe ou son support par sa trop grande 
intonsitb. Cheque branche d'un lustre on 
chaquo bras d'applique porte une clci 
analogue au robinet do gaz. Quand on 
'fait tournbr la clef, les contacts s’dtablis- 
sent eritro les fils de Ia lainpe et les ills 
du circuit souterraln et la lumibre brille. 
La manoeuvre inverse rompt'touto coni- 
munibation et blcint la lampe." Plus de 
'courant dans 1'app'artcmenL ptus do lu- 
'mlbro, ' ’ . 

V?.®.?; 1 ®? “®‘ails; aveo'oettd-'diilbrence'ts-1 diiclionae'l’blectrieilb.'la’ra'a'bBinekVapcur 

senitielle ioi'qUbV le'robinbt fermb.Me-'gaz 
reste-tobjodrs' dans les Hyatt* prflt .4's’b-1 
ohappeb' bt "4 prddtiire-des explosions. 
L’bleotritb no circule .plus,- la clef rermbe; 
et d'aillburs si elle circulait elle'-ne pour- 
bait hmener auotin accident. La clef-‘est 
cbnlqiib’et' 4 large' surface de faboh 'i'at- 
tbnuer l'effet'de Id-petite''dtinbeite'-bleo- j 

appliqud 4 deux grpnds'lustres.4 orislaux 
et.4 80,byas; insta]!d9;.lo dong 'des iniifs. 
100 lampes brillont to'us los. sdirs; " ' 

Le nombre des lampes. sera -augmeDlb 
dans quelques . jours; on doit placer on 
nouveau lustre de 144 lampes, des candb- 
labres do-25 lampes i et. des,;girandoles 4 
4 lampes sur le palier du grand fescalier; 
Plusieurs expositions :durez-de-phaassbe 
sont bclairbes aussi aveo des lampes,Edi- 

VoiI4 succinctement pour, la banallsa- 
. on ef la distribution 4 domicile.' -11 est 
suporflu d’ajoutcr que les dimensions re¬ 
latives des condUctours sont dbterminbes 
’par le oalcul. Le diambtro des bonduc- 
teurs 4 grosse section dbpend de -la lon¬ 
gueur de la canalisation totalb, et les dia- 
mbtres des conducteurs secondaires sent 
eux- mb'mes ilxbs d’aprbs la grosseur de la 
condulte prineipalo. Tout se tient. Comade 
do canalisation estbvidemment plua sim¬ 
ple quoCelui du gaz.' Lc3 tuyaux- - exi¬ 
gent plus pour lour pose de profondes 
tra'nchSes; on peut'les btablir dansdesi 
,bgouts‘bu dans descaniveaux on' bordurc 
■des trottoirs. ' i'" «'-;•{• 

QUelques lignes maiutenant; sunl'usine I 
.bentrale. Nousy'retrouverons nbceasaire-J 

, ---, : rs’'Ma’bb'loS AVappur 

et la machine Uynamo-bleotrique: 4 Toiit'e^ 
fols. U.'Edisbn a mis sur I’ensemblBfda 
syslbnio sa griffb personhelleVll a'bombffi'b 
un typo nojiveau'4 rbndenibrit coASlddrq'- 
ble, approprib’ aux ; 'condlti'oDs''8pbci41es 
du fonctionnemont"simullaiib d’un - trba 
grand hombrb’do lampes. Gliaqlie gbiif- 
fateurde couranV'doif btro'itfiodiiib diloA 
le rOlc qu’il doit jou'er. Legbn'bthfonrpbiir 
lagalvanbpIastio'U'est'jias cohibinS ooninie' 

Id gbnbrateur. iibur la lumibre; et' celuiici 
lui-mbnle change s’ii s’agit db-lumib're'par 
arc ou p4r ’incandescence. En- gbnb'ral; 
les machines' dynamo-dleclriques avafent 
btb construites 'jus'qu’iei "Ippar''al'iffienier 
un ou quelques foyers; or,'dans -rap'plii 
cation; actuelle,'' elles spht -'dostinbesl 4 
fournir "de rblebtricilb' 4 des ceulaines'da 
lampes; ll fallait'dond un-’dikpOsltif par- 
tlbiilier: Nona avons dbBnf'au'cbmmence- 
m’eht dd ces btudes une ma'cliiUC d^uarntf- 
ble’etrlque': « une bobine "de illtf-iSiblaine 
! ques tournant sans cbntact devant 1 jes 
pOled d’un" aiinant ou 1 'd’lin bleelrp; 
aimant. »"'L’iniluence' de 'Vaimant '-bne 
gendre dans le Ill de -la boblne 'pendant 
son mouvement des 'ooU'rans" dlbclHcnieB 
que l'on recueille. Si le fil'dd la ! boblBe 
est gros ct court, les courans -engendrbs 
out' peu dp .tension s’ils so.nt„iiln8.,„et . 
longs, les'courans, ont. beaucpup .de ten-, 
sibn. Pour aliihenter des lampes '4 incan¬ 
descence; il r est indiApensabloj aQa dejse 
rnettre dans'de bonnes conditions de rcu- 
;dement, dp ne se servir que de cuuraiu; 4 
Ifaible tension (t)-. 'LmA -lj.. E§son^^^- 

(lj 11 Importer'en eilet, quo'la rbaiitancpi lntb- 
leuro qu'otlro la machine au passage du;courant 
Inns ads spires soll:illinlnu 4 o auUmt; , quo, possl- 
>'» '1 faut done des Ills 4 largo section. En euel 
iv designs'par't !.Y.r 4 ai»tancs d'unorlattipo '4 
idescnncopiiet" par'iH'- le, uombre. eoarlam- 

dans -son gAnArateur d’AlectricitA, j 
qu’4 remplacer ,les gros fils qu’il fal 
employer par dos barres, (lea diges „ 
euivrepur.dp large section. La bobiuu 
tournanto est du gonre Siemens, c’est-4- 
dire que les Bis sont enroulAs en long 

comma sur uue navelte. r 

^ A la place de chaque brln longitudinal 
de Hi, on a mis une barro reliAe au bout 
de la navotto 4 la barre qul lui corres¬ 
pond sur I'autre cOtA par un • disquo de 
cuivre ; les barres sont groupAes parallA- 
lement tout autourdu oylindre 7 nayette et 
viennent s’enoastrer,. paire parpaire, dans 
ieurs disques. respectib sAparAs Alectri- 
qnement les tins des autres au moyeii de 
rondelles de mica (2).i . . , , . J 

i La oylindre porteur des liges tourno 
entre les pAles .d’un puissant Alectro-afr 
mant vertical, trAs massif. On aura 1’idAe 
de la machme.ea imaginant uni petit cy- 
lindro tournant qntro les deux branches 
dlpn diapason retournd. La rdaction des 
pole3 sur.les barres engendre le courant 
qmest recueilU etenvoyA dans la cana¬ 
lisation. Aioutons en passant que le con-1 

sur to courant gdndral. 

. Tel est le' type primiilt quLfonciioune 
i,l!Exposllion.. Une locomobile actionno 
detio,machine qul-surflt .pour allumor W10 
lampos. Lo typo industriol, celui qui n’est 
i instalid au-Palais,.que depuis qpelques 
jours,- eat un peu diffdrent. Lea deux" 
grosses colonnes de for inaqsif qul formonf 
les branches de l'dlectro-almant sont pla¬ 
ces horizontalcmcntct la bobine ii.Uges 
parqUdles tottrne enlra. Ieurs. extrdmilds 
polaires. He plus, la transmission par pou- 
liesj courroics, absprbantdo la force inuti- 
leinent, la machine 4 vapeur est installde 
stir le mdme socle quo Pdlectro-almahlet 
Clio' actlonne direotempnt ,1a :bobine. Co 
type , ' 1 - 1 -uiiiUfcU- 

.. . trds compact, vdrltafiie Machine 
'usiue, alimcnld ,de vapour’.par une 
ohaudldro dconomiquo du type Bablox 
Wilson oncoro inconnu-on Europe, peut 
fournir, en ddpensant IMchevaux, assez 
d’dleotricitd pour aliumer 2j400 lampes 
de 8 bougies 4 lafois ou 1,200 lampes do 
10 bouaieB. II a did conalniit timir rdclnt. 

in ddrivalion 

-5 l 9'a'a'mm5w t lsnrffianM-dwr' 

bougies. II a did construit pour l’Aclat- 
rage de la ville de New-York. 

On. installs, en. eflet, en ce moment, la 
oanalisation- soulerraino ,-qui permeltra 
d'Uluminor aveo lee lampes Edison,tout un 
quarlter de la .grande -ville, amdricaino. 
Le travail est bienlOt ..termiud, ,.-c‘ " 
se sont ddj4 fait insorire __ 
la Compagnio amdricaino; 

la **«M»ace tautocstdl- vau 
oo co cuof. qu , 

On -pent voir 4 l’ExposUion lo plan 
L'onBemble, qui a AtA.arrAlA par -M.. Edi¬ 
son-, poor l'doiairage du,quartier, eompris 
entre Wall street, la grande 
®“ cla ‘ a -, 4 ? ;NewrY°rk, ,jot le.qusi du, 
.Sudy--qul fait taco au port. Ce grand ' 
quadrilalfcro -,-a , environ - un- -kilomdtre 
°“F®?' Y ,” a 1 J,® centre r .du, quartier ; aera | 
ter b !2 ebanml 0n 0 ? nlral °" doity grou-1 
' " IS ;® k Ta Poor ot 12 machi- 
™ soTan 1 ? 0 1 ques ave o ‘ours -mo- 
' Tout ce ?^ ron ‘.000, Cher 
fur el4 iMsiire'de^besotos° nn ° ra 

„ ne.mettro en. mouvement quo les ma- 
qbines. strictementndoesqair^s ad aeryioe. 
On Atolridra ou Ton alliimera les leak des 
chaudiAres selon l'acorolssoment de la 

. Cette, uqine centrjde r .grand rdiervolr 
d'dlectrlcitd, sutBra -pour.allmonler jus- 
quid 24,000 lampes. Elle.constilueen mOmo 
temps.un grand rdserrolr de force; dans 
le jour la canalisailonpourra Atre utllisde 
ppu'r envdycr des courans: aux moteurs 
Alcctriqucs. Tout ljfew- 
York est ploin d'asceniours, d'AlAvateurs 
do tout, genre, etc.,On distribuorh ainsl 
4 domicile la force molrlce.,On dAgrAvera 
d’aulant les frais d'Atabllsaement,do la 
canalisation, ce qui. periuetlra de vondre 
la lumlAro et lo travail mdcaniquo 4 bas 

prlx. . .. .... ... .I 

Four Aolalrer tout Now-York et dlBtri- 
buer dans la ville la puissance motrico 
nAcessaire, M, Edison .admot qn’U fau- 
(lrait 30 stations ccntraleB disposant cha- 
cune de groupoa de maohines do, 2,000 . 
obevaux; soil en tout 00J)00,,o1ipyailk % l 
Quand on rAllAohit qu'uno Beule machine ' 
motrico.d'un paquebot atteint souvent 
2,000 choyaux, on-ne trouve yien d’ex- 
traordlnairo 4 voir grouper dans des usi- 
nes la lorcc do 2,000 obpvaux-yapour. 
Pour Aolairer Ncw-York, 11 no faudrait, | 
||op dAUnllivo, quo. la foroo que consomme 
uno lloUillo d'uno, vinglaino do grands 
'transports k vapour 1 

oharbons et Ton travalllera en pure perte 

. , IIA tnl t iqdlqpensablpfl'^Hercct IncqnvA- 
inlont. On ponrralt qbllger i» mpohlne gA- 
. nAjutriqo AdimjAuer-d’ello-mCpto automa- 
l llquomcnt nntensitd.du stmnmL,M. Edl- 
ison a prAfAri, cflqctuer, la rAgnlnrlaalion 
par 1'inlormAdlalre d'tm agent 4ft sprvlcp. 
C’est du rcste.alnsl.que.les pbosep se. p as¬ 
sent pour Je got. presslou est 
angmentAe par.l'oxllncUou d'un nombro 
sufOsant de bpoSt .on.s'on aperqolt 4 4'u- 
sine ot I'on .presslon, au, ^uy 
cpnvenable. ,Dft pt 4 n >4 tel pn, employ 4 . 0 »‘ 
spAcialement chargA 4Jg stftUpn,qent»dfl 
de modifier 1'aUure dft, la.-tnaoblne selon 
lesbesoius.4o.fa ooftsommatlon. •, .< 

-Pour dimlnuer, J'lotensltA.du /jpiutmt. 
dans fes fsmpest llfaut rAdnire la produc¬ 
tion d’AleotrloitA. Noue I’a^ons, dAji rap: 
pelA 4 plusleurq reprises.g'cst.linfluepcs 
do l’ bftblfte onmou- 
-vemont. de la.--maohline qul qngendro le 
courant. En. dlminuant torpuissance do 
.l'almanA, ,.»oua- -dlm|uuejcons .par .cela 
mfime lintensltA du courant de la canalf- 
sation. Or, l’AlAotro-almS.itre.abn Aney-, 

gio du courant derive- .ompruntA, au cou*; 
—* gAnAral-ot dirigA daqs les .'spires qul 
oloppont. .11 est (Agile -rAduirg 
rinlensltA de ce .peUt ,'cpurant; jU'.sutdt 
d-'intercaler.Burson trajet'— ‘ ' 

Nous avons yu.pngendrer VAlectrloltAet 
nous sayons comment on la oonduit dans 
lies maisons. -II se prAsente immAdlate- 
Iment.une .ditficultA. L’usine eBt en plelne 
production, ,le.courant, oircule, et ;aUume- 
les lampes d'un quartier., fait lard, 
on vient d’Ateindre coup sur coup, 100,, 
I »00, 1000 lampos; naturellement cellos 

qul restent bAuABoient do 

!au- passageVdans. lea-spires ,, sera aug- 
|mentAeet,rintensitA.mIsq : aupglnf„ n .;,. y 
1 -U,Edison a .combinA jspr oo.prlnolpe 
un rAgulateur,;trAs p^a'Hque^U ft groupA. 
sur .une, table tputoune colleqtlpn 
bines de rAsistanoe cqnvenablement. gra- 
duAes et rApondant/anx variatlonsiposal- 
jbles d’intensltA dans u JUt^oftpaUsatipn.. Bpr, 
\ la mAme table so trouve une manelte qul 
tourner sur un cercle graduA -i-r- • 

doll rAdujre rintensfUdu coupantr 

Fl^nsitA^mentiSe;se j&iiMfc 4m 
le circuit, Bn mOp>e temps, la viteBSo ,d“ 
moteur, est la cpnsommation 

de yapeim rf^llften pimpoattpii.. x . 

' .L’agent dp.aerylce.n a dogo q\i^ ; m»t 7 
pnler .pBe' manAlte placAe sur, une, table, 
pony go rep dr e. mattro dq l'inlensitA de la 
lomiArp dans tbntM.lM mftlsons. 
i -Commgpl,, Jra-t-obi. pent ; U;fiaypjr.,4? 
I'uslne e'entrale eg qufse. pasaq dans toutes 

Atalon reprAsentant l’inlensitA npymalede 
huH .bougiek que doit avoip. la laiqpe.;, 
11 a ft cOld une lampe branohAe sur le 
rAseau, alimentAo par le, courant gA- 
nAral et affectAe comma les, autres par 

On trouvera aussl it l'Eiposilion 
l pholQmbkP.iflsWW *ma : pn petit cabinet 
moir et qui permet d'Avaluer, rigoureuse- 
ment et directement les variations d’Aclat 
des lampes. SurunerAglehoriiontale gra- 
duAe se dAplaco un chariot: 4 T “- J - 
-■ do la rAgic on place 1 

les .varlatlpna qul pourralent se pro- 
■dnlr*. ‘Wun.,regard H yoit parfaltement 
-pgrxomparalBon - si .,1a lampe;da rAseau: 

Isso oil augmento d'Aclat. L'extinofiou de 
quclques lampes n'exerco paa d'aotlonsur 
la canalisation;mals dAa, que le ,'phllfre dAr 
quclques ceptaines, onpommence .4 
. . -Atey, upe di(TAronqe,-eti.4>l’alde .du 
regiintour onmodere ouaugmenterinten- 

^QPdnitfir ne pguit, du. rests, s'y Iro.m- 
P.^aspus... ' 

fat'en} a lq JM'dd.rtQu't prAs,dq rAgu : 

•'>n\apparoll rAvAlateur dea change,-: 
tisnUnS n « t . en,lw du-courant de la.cana-r 
l 111 galvanomA.tro .4 mlroir 

* Sttlto. '(X galvanomAtro rAvAle 4 

_-Instant l’Atat du courii^ans le 

rAseau. Si.l’lntensUA Xaiblitop,ingmente, 

-extrAmitAs di 

place la source 

icontrOler l'Aclat. L e ch ariot porte one 
'carte blanche posAe verticalement eu Ira- 
'vers de la rAgle, .etam-desaus deux pelits 
miroire inclinAs 4 la faqon d’un toll. On a 
hullA le milieu de l.a carte, de faqon 4 
produire une tache grande cornme un 
pftlir ifcacheler, Cette tache so reBAte 
dgns chaque mlroir. Lprsqu’on dAplaco le 
chariot Je, long., de- la rAgle, il vient un 
;moment • eh-les-.depx- laches des miroirs 
dlsparaissent complAtement. 

Onlil-1*division,do,la.rAgle qul cor¬ 
respond 4. la position .du chariot. On - 
obtient ainsl par, une-,Beulo; lecture la 
diffArenoe d'intensitA de la lumiAre type 
et, do .la lumiAre. do la lampe. En 
eflet, lorsque les deux taches ne s’a- 
perqoivent plus; e'eat qu’elles sont egalc- 
ment AclairAes par chaque source lumir 
neuse ; lenr lumiAre rAQAchio se confond 
aveo la lumiAre rAHAohie- par la porlion 
opaque de la carte, II faul rapprocher la 
qarte d'antant plus prAs de la lampe que 
son Aolat est plus aflTaibli. Comma les in- 
tensltAg des deux sources lumineuses va¬ 
riant, en raison inverse du carrA de leur 
distance, on dAdult d'avance les iutensi- 
tA^respeotives pour ohaque distance du 
obulot.4 la lampe et. la graduation mar- 
quAe sur la rAgle Avite lea' oalouls. Tout 
cela est trAs simple. Le rapport des 




ibwe <est4 ™»»- -- 

•il lotrodult dans chaque comparllment 
no de; ae8 jiBUtBB^tt'p.BS^-une llge md- 
lliqde 4 dearmetauX'Wdgatement dila- 
mblea a a oonrbjs-sour V&otiaty du frold et 
elablit.un.bbD.tibt.AMre la lampo et uno 
i cotutyri.L'a lampo s’illqmine et 
l&Ufld Id compteur ,4 une temperature 

dluoider. On pale le gaz en raison de la 
consommaiion jouraalldre. Et l’dlsetrlfiltd 1 , 1 
comment »£pr6crera-£5n 'Iu K dd)pehw : 

Chaque , malspn, . ohaque appartemonl 
memo. aura, eon .compteur. d’dlectricttd 
comma aujourahni son compteur 4 gkzl 
Ges petlts appareils flgnrdrit dans la see-; 
lion d’Edisbnin Talkie; Us sorit mlguons 
et de dimensions rdduttes. 

On a .sous ilek, Jfeoi.-une bolte -md- 
tallique d’enklron 25 oentlmdtres de hau- 
tear rsuf20i d6 largfihr etT 12.'cenUm&tifflS 
d’dpaissenr. jPlacde, ..'jertlbalem'eat,elle 
s’ouvre 4 deux Saltans comma les deux 
portee d’une armoire. Elle,, est par- 
tagde int4rieuwin'en}; 10 j>ar : une, jqlqison 
vertlcale' .bn deux [comparlliriena -dans 
chacnn desquels. .so .trouve un petit 

sulfate de'ouifre, Chaque. flSicoji:renferme 

-«Ve dpui l&qeftjn'dtalUqnds en rela-r 

|_eo les conducteurs du rdseau k 

leur entrde dads la -malson. Une petite 
fraction, toujofilfS constant,, du courant 
gdndral pdndtre par les lames au seln de 
la solution cuivrlque et la ddcompose; du 
ouivrese ddpose sur une dps lames. Letra^ 
vail chimiqub effeetpd, jnesurant exaote-1 foredment- aVeo i la- mdme force donner 
mentrdnergib„du.jCOuramtiuUUsi5 dans la | eSojns de lumidre. jlien quo la dlssdmina- 

pourdvaluer laquanlitdd’dleotricitd qu’c_ 
a ddpfensdh’.Tbug ldsnio'is un agent bukre 
le dent il ala clef 
et pdse le-culvre. iTous les ana’, un con- 
trOlenr ouvre le comparlimen.t de tfaupbe 
dont seal auiSl ft a laeldf et pb&le ouiyre 
ddposd., La.sommo des.pesdes mensuelles 
doit dire* dgale,.oomme vdrlficallon, k la 
pesde annnelle. ' 

En hiver, duand le frold de vient In- 
iensey la VddbbmpoBitIon , 'ebtmfrtnd -mas? 
rait dtro attdnude; 11 ne 

IntensUds est Immddlatemcnt Indlqud. i Variations'3e‘:?emp3?i^e r .„.- 

' ’ . 

jit, 'A.dtd prdvn dt parrattement rdsolu. 
|tx‘il a’agisse de.lumidreoudeforce trans- 
jisej .tout abound payera’eh falsSn'ile’ 
ll^laolricitdjqu’ilraura ddpensde.- - 
h Tel est dans -ses grands traits le ’mow, 
de pVbdnetib'n, do canalisation, de dls-. 
,t|ibnUon :ot jda^meaure do 1'dlccfricitd, 
itaagind par M. Edison. 

i parell sysldme d’d- 
__ revient ?. 

, incontestable quo la ldrpldre par 
incandescence est 'de betiu'doup plus chare 
quo la ltimidre par.aro voltafque. Chaque 
fpis qne l'on mulliplie les foyers, on 
ajcCrolt; lp .. .nombre, : des ctiarbons k 
dchauUdr, on ■ augments, las psrlss de 
ohalejir, les surfaces do ray'onnemcnt, les 
^distances dans le circuit; cto.; — J "“ 

l Quel sera dans, 
dalrage le prix dt 
- J.Il est incontesti 

[on des lam'pes<permieUe de i regagnor 
pen par une meilleure distribution do la 
lamidre, 11 n'en est pas .moins vrai que la 
dlyisipU aboulit toujours en prlneipe k 
un .renidenient faible., 

■ [II encst de mdme pour le gaz. Un petit 
bee consomme relativement .beaucoup 
plus qn’un bee puissant. , ' 

Ainyi le beo papillon de la Vllle donna 
1 carcel 10 et ddpensd.140 litres. Le beo 
do la rne_du_ Quatre-Septembre 'donne 
ra-'d«i'dels et-n? ddpentdque iv«6: litres; 
1 r — bees iutenelfs Siemens fourr 

g.r>-Sfg^ a * i r. : ■■■■. -- 1 -• 

pout300 litres,6 eareels j-pbur-COO . 

14 offdeli; pdnr 800;.litres, 23 carpels; 
pour.1,600 Utties, 47 parcels. Un volt , la 
;ddpenSd l 'dImlnno'r aveo l'intensild' J " 
foyer, ., lj0 ;.; « #1 

■ Une lsmpe.par Incandeaoenoe dont 
par pbdval,,et par bears; 20. carc'els, !dj 
.tribuds en 20 .Ibyers; landls qu'un ;si«,. 
foyer dleolrique-trii puiaafintpeot foprnir 
par heure JUdqu'ii .280 carpels.,jQnjdmet’ 
qu’eu inoyenne le rendement de la lu- 
midro, par rneaffdeacenco eit pldb ’de dlx' 
fois moinclre. - ■ 

"TMcS^qurimforlerd'd, n'est/'-jiais; l 
, pritrelatlf. de. la.'lnmidre.par jqoan'des 
I 'tfencdct par aW, o’est- le Jrlxde rdvlent 
' .oompard k celdl dugaz, lumldre.dleb- 
'ttlque est meins ohdre quo delle du gaz, 
qu'il s’agisso de l’dblsdysigd •fit aro ou 
mdme par Inoandeaconoe. .•- -.v-. — l 
‘ Enbrttlintdlreotemenl,4 mdtres cabeado 
gazdansunbeo.'onnepeutlpre'duite au'fleU 
.do 40 cdrcela. 81 ron.ddpenae odtte jn’dme 
quantitd de gaz pour falre do lit force dans; 
-- moteur Otto, on obtlent .-quatro dhe- 
ix deforce qul, transformds en dleotri-' 
oltd par und machine Grammd/et. en lu- 
mldre par un rdgulatour 8erriu, donnent 
une puissance; lumineusede plus, do too 
bees Carcel, en ddgageant 150 fois moles 
de chaleur. .. ^ - 

, Le mdme volume do gaz peut done don- 
nbr.i volontd ’40 beos ou 300 bees, Bdlon; 
le mode d'utilisatlon. U est vraisemblable 
que lo gaz.dans • l'avenir aorvira' ’ surtont' 
de combustible 1 ,' II donne enQn 'i3,0b0[oa-' 
lories, quind la houiUe n'en ddveloppe 

que 8,000. '^ .. ./ .. ; 

Lea foyers intppaes et 
peuvetit pas dtro appllquds aux usages 
domestlqods ; ipais, mdme aveo les -lam- 
pes 4 incanddacenco, on va yplr.'qu’ll y a 
avantage k transformer encore io gaz en 
dlsnirioHd;-- • • 1° parliculler qul vou- 

jjralt jdds malntonant dclalr’er son hotel 
ou 8a,mai8on avoo.leslamp'pa k lucan- 
desconce, Sans altondre rdtabllBpemenl 
tl'uno canallsilidn gdndrate, n'diirall 
qu’i ; inatallor . chez lut) dans le 
pous-Bol,; upe mapbine ;4 gpz do un ou 
(leux cbevaux. La machine, ddpenso par 
heure et par cbeval 1- indtre cube. Co 
mdtroi cube, trapafMmd , pq dlectrloltd, 
ro'urn[t aveo;les lampes Edison 20 oarcel 
et.alimenfe ?0 lampes. carcel. Le 

mdtroi'oubo brOIi dlrcptemeiit dans 
de t baroel no fournirpit quo 7, — 
,i" tenant’..pas ! compte, de 

ce nombro d’houres. SI ,de pins, 1 ’usIdo i nous n'ayons pas fait la part assoz large 

envoie de la:force pendant itoute la jour- S '-‘ — JJ - J ‘ 1 - : " 

nde 11 est,dvident quo les Irais sontri- d 

carcel. Lb beo carcel gaz coUte environ J 
4-oontlmes,.Avco lesJntdrdts etl’amortis- 
setneqt; pouy le sysldme .mdoaniquo re- 
yenant 4 peu prds 4 0,000 ft, et pour un 
dolairdge do 5,000. heures par an, .on 
trouvd .comme prix de revient environ 
2 centimes par carcel et par heure. . 

Loracju’on' produlra. rdleetrioitd par des 
-jaohines 4 vapeurpuissantes, la ddpense 
eh oharbon dtant. rddulto par forco do 
Phevai a i kilogramme, et lo kilogramme 
de boullld coQtant 5 o. environ, si l’on ne 
tientpas compto des frals do canalisation, 
d’intdrdt, etc., le prix d’une carcel des- 
' l "" J *ait 4 un quart do centime. 
j » o8t impossible en ce moment de prd- 
qiscr des ehiflres d.dBnitifs.parce que’tout 
ddpend dvldemment do la longueur du 
r&eau’et; de sa densitd, c’est-4-diro du' 
dombre de lampes qul pourront Otre 
groupdes, ear le mOmc conducteur par 
Unit'd do longueur. II cat.clair quo lea prix 
s'acoroltrbnt en raison de la distance 4 
laquelle 11 faudra pojter la lumidro ou la 
force. Tout ddpend aussl .du nombre 
d'henres de travail. Lo cbifTro'd’intdrCt; 
d’amortisscmoul se rdpartit forcdmcnl sur 

duits en-proportion. 

Exemple : Admettous un rdseau do 
DO kllomdtres do ddveloppement alimen|aol 
20,000 lampes ou motcurs, et ndcessltanl 
une force de 1,000 cbevaux. C’est one 
densitd de 20 JnmpeB par 50. md- 
tres, ce qui est loin d’Otro exagdrd : 
11 faudra 50 kllomdfres. de .conducteurs 
doubles, c'e8t-4-diro 100 kilomdtres de 
conducteurs simples, .Supposons quel 
les besoins du rdseau ndcessltent la 
pose de 20 kilomdtres- do- condueteurs 
d’une s'!.2. cenllmdt'res "or¬ 
ris et 80 contimdtres de conducteurs do 
petitosectlonde 1 centim'dtreoarrd. Leprix 
du kilogramme de cuivre pur dtant de 1 fr. 
60 c., on peut eslimer le kilomdtro de gros 
conducteur, avec. sou isolant, son tuyau 
de fer enveloppe 4 prds do; 9,000 Irt, e t lo 
petit oonduoteur 4 3,000, fr. environ.,Dd- 
penses, environ 500,000 fr. Aveo la cana¬ 
lisation 8uppldmentaire, les machines, 
les rdgulateurs, eto., ou pout-doubler 
cliiffre pour les Irais d’iostallalion, 
alter au million on chillrcs ronds, soil 
50,000 fr. d’intdrdt annuol. Les frals Sex¬ 
ploitation, loyor, personnel, amortisae- 
ment seront d’au moms 150,000; fr., Total, 
200,000 fr. Cette somme doit se rdpartir 
sur los 20,000 lampes. Co qqi fail par im 
otpar lampo 10 fr. Si le3 lampes sontuti- 
lisdcs pendant 2,000 heures seulement, la 
(ldpensc affdrente 4 ohaqub foyer sera de 
mi demi-cenlime. Si le travail se poursuit 
pendant 5,000 heures, la ddpense baissera 
4 un cinjuiime de centime. . 

Prenens lo eas le plus ddfavorable : 
2,000 heures. Lo prix do revient sera 
d’une part .d’un demi-centlme - et ■ de 
l’autro d’nn quart de centime pour les frais 
"de eombuslible, solf en lout demoins 
de 8/10 de centime. Admcltons encore que 

dtablissemenl. Au pis aller, doubli . 
cbilfre, nous arrivons 4 une ddpanse par 
carcel d’environ un centime el demi i deux 

11 est clair qu’en vendant 4 Paris la 1U- 
midre d’un beo troiB centimes par .car¬ 
cel, on fernlt encore de beaux bdndfices 
et le prix pour le consommateur serait, ,4 
peu prds, d’un tiers morns cber que celui 
du gaz. Nos chifTres se rapprochtfnt beauJ 
coup de ceux qu’annonce U. Edison. Le 
physioien amdricaln; prdtend, en eflet, 
que ga lumidre rdalisera prdcisdment une 
doonomie d’environ un tiers sur le gaz. 

Nous rdpdtons, pour qu’il d'y ait/pas de 
malontendu, quo ces evaluations, sont 
approximatives; toute estimation,prdcise 
est ndeessairement lide aux conditions 
particulidres de la canalisation ct 'de ^ex¬ 
ploitation. II va de sol que, s'il fallait 
prolonger de plusieurs kilomdtres la ca¬ 
nalisation pour desservir quelques dou-; 
zaincs de lampes, les prix gdndraux db- 
vraient monter en consdquenoe. Qubi 
qu'il en soit, mOme 4 prix dgal, lp 
nouvel dolairage prdsente tant d’avanta- 
ges sur le systdmo actuel, qu'il n’est pad 
douteux que son emploi ne se gdndralisp 
4 bref ddlai dans les grandes villes ct 
dans les maisons. i, 

Nous avous beaucoup insisld sur Jo - 
systdmo Edison parce qu’il nous paralt de 

Lo gaz a did expdrlmentd 4 Paris pout 
la premidro fois en 1818 au passage des 
Panoramas sous l’admtnistratlbn de M. db 
Chabrol. L’introductlon en l’dii'. 
clairage par incandescence datera deli; 
premldre Exposition Internationale d’d- g 

Henri of. Parville. 

9 ' 

asSxsoosr [ 


v Ren.trfi rfan8 f ao.n;!l^ofal6ir6;‘,'Io'-.v6ili 
auxpompioncfis.-' . • '• . • 

II avail son idbo, dt son programme 

Si Edison so yoyatt comparer: au cb- 
bbro.Aladin, do /aplastlquo mbmoire, il 

• iO trouvorait .pas lo compliment flatt’our. 
. Aladin n’avait rioninvontb, el lagloiro 
d’Edison . ;c’.ost d'inventor tpujours ot 
quand memo, ot l’invention dont il pst lo 
plus flor,3’cst sa lampo. 

, -Car Edison n’pst pap un' mylho, — 
commo uno foulo ddiMrisibiis-B’blaiant 
. hakiituds to lo oroiro donuls ilo -jour: pu 
rolentiront, pour la promibro Mis, sur nos 
boulcyards, les accents du fameux ptio- 
nograplie, — uno do ses noinbrouses 
crbalions. ... I 

• Lacuriositd la plus vivonto 4 exposer 
dans lbs dalles d’Edison, 4 l'Exposition 
d'dlcctricild, c'btatt Edison' lui-m’6mc. II 
foul regrettcr. qu’on n’ait pu lo fairo; 

Tronto-six ahs, (Iguro i mborbo, taillo 
au-dcssus do la moyenno, constitution 
atlilbtique, rdsislnhco absolumoiit inouie 
au Iravailot & la fatiguo, caractbre d’uno 
simplicity ot d’uno dffabilitb charmantos, 
scionco proforido • dans toutos Iob ques¬ 
tions dc mallibmntiquos, do chimio, do 
physiquo ot spbcialemcnt d’bldctricitd : 
voilb l’liomme. 

• Tcnaco au-doll do touto expression, 
qunnd il ost sur la pislo d’uno dbcou- 
vertc; pour lo poindro complbtomonl, il 
surnt do raconior comment. il est arrivb 

1 i inventor, 4 conslruiro, ■ sous sa .foriuo 
actuollc, sa fameuso lampo ii incandes¬ 
cence, qui rbpand une lumibro si bolle, 
si cliaudo. si rbgulibre. 

Laconqufilo do la Toison d’Or ou des 
fruits du j'ardin dus Hospbridos, los 
douzo trdvaux d'Horcule, tout cola n'est 
ricn quand on songo aux- btu.dqs, aux dd* 
.ponses,- aux voyages, aux deuils/mflme, 
quo reprdsento’"ce mince filament do 
charbon:blincclant, brillant au milieu 
do do crislal,-groscanjmo 

des appartomcnls. 

L’ideal, I’aivonir, c’biait, il l'enlrovoyait 
dbjb, le romplacomont do I'huile, du pb- 
Irole, du gaz, par la forco blcclrique; on 
snvait In produire, la fabriquor, il s’agis- 
aait d’invonler un apparoil, uno lampo 
pour la consommor, et touto uno organi¬ 
sation, complblo, pour canalisor, on quol- 
quo sorto, i’blcclricilb, ot la conduire 
pni'loul, commo lo gaz. 

Voilb qui n’blaitpas facilo. 

. Tous les syslbmes en usage, ot qui 
nous somblaicnt si beaux, les brillants ! 
foyors ob brfllent, • aveo uno flammo I 
tromblotanlo, des chnrbons qu’il faut 
romplacer souveni, commo la mbeho 

lumibro; quo pr,oduit uti 111 do-platiiio 
rougi par le passage do l’bloclricitb 1 
(C'est cola quidohqo uno luqur. bcldtdntd 
iblnnchc, fixe I.. • . • 

Il availprimilivementtbrilbd’employer 
du chdrbon, rendu incandescent.par dc 
I forts courants bloclriques; mais cos cou- 
rqnls dbsagrbgcaient les molbcules du 

C’biait en 1878. Le nom d’Edison avail 
ddia fait lo tour do l’Europe, grdco sur- 
lout au plionographo, qu’il n a cossb do 
considbrcr commo uno invention des 
plus sbriouscs, u laquollo ost rbscrvb un 
avenir farilastiquc. J’cn roparlcrai un do 1 
ccs joursl ■ - ; • I 

Il avail, envoyb 4 I Exposition un cer¬ 
tain nombrd d’oppareils curicux, et Ira- 
vaillait-bcaucoup'la question des tblb- . 
phonos, ce qui no l’cmpftchait pas, tout- 
cn songcanl, do fairo quelqucs excur- 
sions do cfltb ot d’autro. , , , 

Un jour,' pondant uno tournbo a tra- , 
vers los Montagncs Rochousos, avocson j 
ami M. Draper, la conversation lombo 
sur l’Exposition do Paris, sur la lumibro 
blcclriquo, l’bclairago fberiquo do noire 
avonuo do 1’Opbrai dont tous los jour- 
naux ambricnins racontoiont morvoil lo. 
— Dilos'donci s’bcrio M.- Drappr.vpi.14 


daiont. Et dependant il les enformait; 
dans do petits globosdeverred’obil avail 
rdtirb tout 1’air, pour empOchorTugure 
du mbidl. 

— C’est, se dit-il, que le plalino n est 
pas assez solido; il fond trop vile,-4 
1,000 ou 2,000 degrbs; voyons autro 

Alors, il so mil 4 essayor uno foulo 
d’aulros corps mbtalHquos reg&rdbs-pour 
ainsi diro commo ihtusiblos, et’ qui Ise 
irouveqt allies le plus, souyent au, ; pla-r 

Chacupdo.cos corps.est, du_raste',pa's- 
sablomont-rarel- Dans- les laboratoires. 
los mioux fournis-on-a une pareollo tie 
ebaquo, perdno au fond d’un 
CHn', Ob' if faut l‘oplr’aporccvoir, ''Ia de- 
; virior.avecf..leSrycux,.de--Jai.foi;.ios.chi-, 
fnistes'vous:montrent : la-petitoflolojvous 
font lire l’btiquettb. et -vous disent grai 

du.dff!l’osrnium;'.-r::ou'.n!impo'rto ciuoi, 
Vous aporcovdz' quolqups petits gra¬ 
nule’s, une poudro noirdtro ou'grisdtrc; 
do quoi remplir la poinle d’un petit curo- 
dents, et vous vous bcricz, do conOance: 

— All I trbs cUrioux... trbs clrOlo I- 
...Cola ser’ait do la poussibro do maca- 

• f.- . ' 

' r^GWtTpOTP'diroi.oncdro. iinb'fSis;"quo ; 
>9J5ont dos substancos trOa raros. 

■ * Edisoii voulut les expdrimontor, ndan- 
inoiris. 1 ' . 

. II lui on fallut 1 tout prix, — ot son 
laboratoiro doMonlo-Parkest montd sur 
un tot pied, il disposo do rossources si 
colossulcs pour sos travaux, quo lo pnx, 
quo la diperise, pour sos dtudos, no 
comptent absolumont pas. , • 

II out son palladium, son iridium, tous 
sos mdtaux on um, sans onrion tlrer, on 
ddfinilivo. • ... 

Lo rliodium, on particnlior, lui fit fairo 
bion du mauvais sang. 

Du rhodium, 11 n’v on avait pas un 
, alomo chcz los. raarchands do produits. 

■ ^Sdtson dOrilii.UnOdliibro mindralogislo 
,! >5 fitats Unit, p pul Scomn o possi i! li t 

tbs-Ios-i’deo'vCes Unttglnpbli^i^ipRDlqij'f 
bait s’ll'.en fallut, pour.•'quit, ;ossayftt-: 

onyoyo,-*- oomrno 11 hnvqjt fajl.-pbur] 
lb's- mOtauXi — dos ospficos^dp. : commisri 
■voyagours" dans tbute l’Amdriquo, on; 
Asio, op Chino spOciulomont, ot au Ja- 
pon, pour en rnpporlor toutcs los varid- 
t6s do pinnies connucs cl inconnuos, 
dos bnmbous, surlout, dont los fibros- 
pururent hiontdt 4 Edison prdscnler dps 1 
qualitds tout it fait favorablcs 4 ses dos-j 

L u „,. 

Pour l’nmbur do' Diou, onvoyoz-moi, 
pour mes experiences, un pou do rho¬ 
dium ; jo vous indemniserni. 

— Du rliodium? lui rdpond lo savant; 

■ jo no domnnderais pas mloux quo do 
vous on donr.or, mais, dans tous lcsEtals 
do l'Union, jo pario quo vous no pourrioz 
vous on procurer de quoi bouchor 
clot de montre. 

, • Nous verrons bion, s’dcrie Edison. 
JDans la Caroline du Nord, dans dos 
[isoments oil l’on avait trouvd do l'or, on 
Vait roncontrd aussi du platino; done, 
dovait y avoir du rhodium. 

—Parteztout do suite, dit Edison 4 
_n do sos collaboratours, pronez dos ou- 
vriers, toutco qu'il faut, Ot failes-moi du 

L’onvoyd so transpbrto sur los lieux, 
cmbaucho cinquanto ou soixanto oil- 
'■-'ts payds largoment, lour abandonno 

-l’or qu'ils trouveront, et recuoillo 

enquolquos somainos une demi-douzaino 
do kilogrammes do rhodium, qu’il ap- 
porlo 4. Edison. •' • s 

■■ Ee premier sdih do : celui-oii ce ftitd’enp 
onyoyor aussildt un. kilo 4 l’adrossc dui 
savant ot cdlbbro mindralogislo, pour lui 
montrer quo co n'dlalt pa's rare du tout.. 

Mais,-encore uno fois. ni.le rhodium,!' 
niie platino, ni 1’iridium, ni auoun . me¬ 
tal, malgrO quclquos essais rolativement 
satisfaisanls, ho donnoierit au pafiont 
chcrcheur sa solution. 

C’est aiors qu'il arriva 4 cssayor do 
ouveau un 111 do cliorbon. '. * 

. Cola paratt toujours singulior d'cnlon-1 
dro diro uh til do clnirbon; car l’onpenso 
toujours au charbon do hois do nos cui-' 
Sines, si see, si ciissant, si peu (loxiblo. ‘ 
M4rs, on realite, il suffil do songerqu'on ■ 
peulcourbord’avancc dos llbrcs dobois, 
du carton, loscarboniscr parun proeddd 
quolconquo ot avoir la flguro d’un for a 
cli.eval, par cxemple, on veritable char- 

Unfil decoton, chautte, cuit, carbonise; 
.. vous voulez, dans uncrousot porte «•« 

roUgo, donnora — - 1 — 

charbon ayant Ic 

cru,' ■ ;. . . , 

Edison dtudia tqutes les matliiros sus- 1 
. «optibl08 do so carbonisor ainsi : dupaV 
'*.u carton brislol, dos filaments [do! 

Jo disais tout 4 1’hcuro quo la lampo: 
Edison avait commo son marlyrologo., 
C’cst Iris exact. ,Un do cos dinissairos4 
la rcchorcho du mcillour dos biimbous, 
ot cxpddid dans uuo dos Antilles, oh 
rOgnait la fibvro jnuno, fut attoint do co 
:mat lorriblo dbs los premibres heurcs 
jnprbs son ddbarquement, ot succomba 

i-avoir p„ ronl p|i r sa mission. 

.. ..force de rcchorchosot d’oxpdricn- 
cos, Edison Unit done par donnor la prd- 
[fOronco 4 la flliro d’uno ospiico pnrlicu- 
,! ero do bambou, origiuuire du Japon, ' 
t c'osl avec cos filaments quo sonl faitos - 
:s lampos; charbon,.courbe on; 
ir k .chovul, cst onforme dans un petit - 
lobe, uii'pou plus-gros quo'lo poing,- 
’oii; 1’on; a exlrail tout l’air, autant quo 
possible,, ot,II suftlt; do : fairo passer On. 
couraiil'eioclriquo dans le susdit (II pour 
qu’il rougisso d’une lueur detatante, quo 
l’on moditrc'4. volonte au moycn d'uno : 
ospOco do robinot, d'uno clef absolumont 
iscmblablc 4 colic d'un bcc do gaz. 
Sculcmcnt,alln qu'un courant trap fort 
j vienno pas, 4 un moment donn6, soil 
fairo. rougir ot memo fondre los fils con- 
|ductours, — co qui pourrait causer dos 
dnccndics, — soil brfllor los filaments des 
lampos et dtcindre tout lMclairagc, 
i Edison a dispose, sur los conducicurs 
;on metal amcnant I'eicctricite depuls 
1’usiiie jusque clioz losabonnds.dos appa- 
rcils do sflrote, qui prOvionnont absolu- 
mont tout accident do co genre. 

Eli outre, il faut quo cliaque abonnd 
no paio quo suivant sa consommation, 
o pst-4-diro, qu il ost indispensable qu'il 
y ait un comjiteur, commo pour lo gaz: 
Edison on a invcnUS un, millo fois plus 
deiicat otplus parfnit quo noscomptours 
>nioiiidro quantile, 
r d otoctricite.consommeo, twee .une exaci-. 
-tiludo inouio; . ' . ; ■ • , ' ' . 

r i-i ■? voit quo;, tousIbs'detalls ont et6 par 

s^prOscnb I so 8 rr sysfome'est com- 
i plot. Da jour au loiidemain, dans n’im-- 
pprio quollo viHo d’Am'dridue et d'BU^ 
rope, il est prflt i dclairer un thd&tre;:- 
uno usine;- dc'S-magasins quolconques/ 


eston;mosur6,'—,'lui ou'Ia Cofflni- 
gnio.hui oxptoito:ses proc6des,.A- do 
promcUro dos - Ohosos. aussi- oxlraordi- 
IJWWV'd?-. wnir.diro dux gbns-qiii ont 
;Cheq oux qmnzo; vingt gaz :-"- 
‘Laisspzrmqi 'vous poser, 4 la pldco. 
quinzo,-vingt lampos eioctriquos, 'qui 
vous eolairoront mioux, d’uno nianiOro 
al; v ous. cofltoro 'ht abso- [ 

Inumonl-la mSino choso cjtfiTlo gaz'^Ujm'ij 
lifri’y engage... , .. . ; 

Si Edison on ost arriv'6'14, c’ost qu’il a 
.iallseun typo do .machino produisant 
reioctricite dans dos conditions 6cgno- 
miques inconnuos jusquc-14 : son gone-. 
ralaur eicclriquo utiliso Jusqu'4 DO et 
03 pour coni do la forco motrico, tandis.i 
quo losmoillours'vont'4 poine 4 70 ou 72.j ; 
" y a lo syslbmo do canalisation. On-j 

_a, qui a ete l’objct do longues etudes,- 

{ ot qui no pi-eto plus 4 la moindrp indeci- 

Enfin, 4 l’usino memo, so trouvo un 
regulatour trOs curicux, destine '4 main- - 
tonir dans tout lo sorvico un courant r6- 
gulior ot constant. . .. 

Ainsi, 4 uno ccrtaino Iicuro, lo soir, il 
y a do grands etablissomonts, dos thiSflt- 
tros, .dos cafes,- dos .magasins, oh-I’on 
etoint subitemonl des lumibrcs par con-J 
tainos; si tnuto colto Clootricite inoccu- 
pOo so rojotait sur los bees, sur los 1am- 
pcs rosteos allumees, cola forait do jobs 
dCgtlts dans.tous los circuits 1... Lo regu¬ 
latour osl'14 pour prOVonir quo la tension, 
deviont, 4 lol moment, trop forto, ot qu’il 
faut rOduiro la prossion. 

Partoul, en soinmo, nous retrouvons, 
„/cc dos nuancos, los details do la fabri¬ 
cation, do la distribution, du rCglago du 
- - mais avec millo avantagos nou- 

i on plus. ' 

uiio lbMibro saibo ot.'.tbhjourS 'preta i.un.! ■ 
irbblnot 4 tournorbet il n'ost; m6mo pfis'i 
bdsoiff.'.d’uno allumotte, cbmmO'p0flb oh-, ; 
haihmoribn-boc'idp.gaz. , ;• 

‘ uyollftlco qti’bn pout vbir,dej4 instalie 4- 
Now-York, dans tout un blooh, o'eat-k- 
(liro lip eiiormo.pttte do.'maisons do la 
graiido villo, ou' lo syslbmo ost dbs main- 
tenant complot; car Edison, qui ost co 
qii’on appollo un hnmmo Ominommont 
•pratique, no lanco rien sans l’avoir crousC'. 

& fond, sans avoir 6tudi6 jusquo dans 
ses moindros details la realisation do son 
invention. Commo cela, au moins, quan'd 
uno ost- flnio, il pout la laissor allcr et 
s'oeoupor d’autro clioso. 

Colto fois, il so declare, paratt-il, sa-: 
tisfait, ct los Americans sont sans doute 
do son avis. Quand on a visite los deux 
salons da Palais do l’lnduslrio, quand 
on a soi-mflmo etoint ot rallum6, on 
lournant lo robinot, quolques-unos dos 
lampos nombrousos disposeos dans cos 
deux pibces, on ost oblige do declarer 
commo eux quo lo problbmc estvraiment 

La Iampe 4 incandosconco d'Edison 
n'ost-allo pas au moins aussi commode 
quo lo bee do gaz? 

UCl> *vun --'I | 

la table de travail do | 
j f'Homme d’6tudo ou dans une suspension 
do salle h manger; partout olio donno sa 
: ,mCmo lumifcro, peu diffdrente de collo, 

• du gaz, mais flxo, rdgulifere, ot surlout 
•. sans inconv6niont pour la sant<$. 

;• Car cnftn, lo gaz dans nos demeuros, 
dans les lieux do reunion, partout, on 
peut 1c dire, — ct mGme dgins la rue, ou 
ses Emanations empoisonnont- le sol olr 
vicient I’atmosph&re, — lo • gaz repand- 
dans Tair quo nous' rospirons dos pro-:; 
duits des . plus maisains; c’est un fail:; 

. ^ connu. Bn outre, 11- ddgage, en brftlant, ; 
p?uno cliaieur considErablo, insupportable,; 
p mfimo on hiveri dairis un endrois clos. 

L La lamp3' i incandosconco, la lumiero 
S d’Edison, au contrairc, qui luit dans lo 
r vide, dans un globe hcrmEtiquomonlfor- 
f mE, no pout vicior l’air; en outre, e|lo 
i-,r nc l’Echauffo pas non plus. % 

If Elio pout 6tro disposEo n’importo ou : 
P c’ost Evident, puisqu’ollo est alimentEo 
fe* par dos fils comme ccux dii tElEgraphe, 
nui nassent partout. - 

N Uno supposition : on El&vo une vaslo 
■M usine & la Villotte, ou do puissantos ma- 
M chines h vapour font tournbr, b plusieurs 
5 v ccntainos de tours b la minute, des ma- 
M , chines Eleclriqucs, qui fabnquent de 1 e- 
K Ileclrioitb. 

M ■■ Do fluide, au moyon do. barres do pa.d- 
m - ta) posies sous lo soi dos ruos, commo 
® i los tuyaux do gaz, ost transports au loin, 
M monlo dans los maisons,.ponbtro, par 
H dos Ills, dbnsles appartomOnts,so foufi o 
S | dans lo 'salon, dans la cuisine,_dans la 

Voici comment il l’avait posS.pour lui- 
mbmo, et jo rfisumorni ainsi cello trop 
longuo digression sciontiflquc: 

- Pour i’Oclairago, il faut lumibrq.; 

’; Qu'ost-co qui nous on procure; actuol- 
loment? ■ 

Co sont los usines 4 gaz;:- 
! ; Or, .rbsino;.4 ’gaz hoiig. onyoio la lu- 
.niibre, e'est vrai, mais avec une foulo do 
cliosos' irifcctcs, nausSabondos, mbphi- 
tiquos, qu'cllo dovrail bion garder pour 

] L’idOal, ce sorait do laissor toutes cos- 
impiiretSs, ces produils maisains, 14-bas, 
ul’usino; de tamisor tout.cela, ot do no 
donnor aus nbonnSs quo cet 616meat: 

Avoc rsioctricitb, so dit Edison, jo fais 

Dans l’usino, dans mes machines 4 va¬ 
pour, jo brflle la houille, et tous ses pro- 
’uits infects s’on vont on funido. 

Mais les molours 4 vapour transmot- . 
.jnt lour cnorgie, lour puissanco 4dos 
machines filcctriquos, et lo fiuidovaau 
loin produire la lumibro demanddo, ot 
la liimibro toute seulo. tamisdo, passde 
- cribloi sans vapsurs, ■ sans gaz, sans. 

, ,V.oil4 IHddo originalo, et.par sa forme, 
et foadV si. admirabte.mojjt.fQymu- 

luo ot rdalisde par Edison 1 

• : fVoii4-le problfime toVqu’ilVaxait ooqou 
et- vol !4 com m opt; ‘il' l’a- ddfluttivemont 
.mend, 4 biem • .is.:' ' . 

I - On pout to dire aujourd’hui, 1,’dclairago 
dlectnquo h'est plus rdciaijage.' do l’ave- 
fiir rbgqo' 'dbs mturiteriant, ot, pour pd- 
ndtrbr daps nos -dfl'meuros, il n'attond 
plus qii:une'chose, -pose des fils qui 
. menocehtu do^eqiblacer;,:partouj,givaut 
I Ibnglempsj la-,canalisation ; du. .gab, -.pdUh 
rdclairagb d'eUii' socidtd modernoi-.... 

“■ —^.' *,.- c!; .- D> P. Bnvorneyr,- 




En dehors dcs clmudiOros De Nacyer et dc quclqucs clmudiftrcs de locomobiles qui 
n’offrent rien de particulier, nous no trouvons en fonction h 1’Exposition d'dlcctricild qu’unc 
chaudiere Collet, variante peu intdrcssanlc des chaudieres du type lubulairc gdndral auqucl 
appartiennent les chaudidres Belleville, Root, De Naeycr, etc. Nous dcvons ciler aussi la i 
chaudidre de MM. Babcock et Wolcockx, qui doit acliver la puissantc machine dynamo- | 

dlcclriquc d’Edison; mais nouscroyons devoir altendre, avant de nouscn occuper, que cclte | 

intdressanle installation soil en fonction ; nous en ferons l’objel d'une dlude spdciale. j 

II nous reste a passer en revue les diffdrcntes machines molriccs qui donnenl la vie et la , 
lumiere a. cetle belle Exposition d’dlectricild. 

Machines Compound type Sulzer, de MM. CARELS fibres, de Gand. — En l 
tete se prdsente une machine beige : la machine Compound A soupapes du type Sulzer, exposce \ 
par MM. Carels frercs, de Gand. Cette machine sc compose de deux machines horizontales ! 
separdes attaquant le meme arbrc molcur a l’aide de leurs manivelles caldes a angle droit | ! 

sur cct arbre. Les cylindres de ces machines ont Pun dc diamdlrc,900.. de course, I 

l’autre 700"'"' de diamdlrc et 900""" de course. La vilesse de marclie esl de' GS lours par ) 

minute. I 

Les deux cylindres sont a enveloppe de vapeur. Le petit cylindre du type ordinaire de 
MM. Sulzer, de Winterthur, est a detente reglee par le rdgulateur, la vapeur d’dchappement se 
rend dans un reservoir tubulalrc inlcrinddiairc, oil elie est rdchauffdc par dc la vapeur 
venant directement des chaudieres; de la elle passe dans le grand cylindre au bout duquel 
sc trouve le condenseur commands par le prolongement de la tige du piston. 

Tout cet ensemble a ce caraclere dc parfaitc dldgance qui distingue les machines Sulzer |‘ 
et d’admirablc fmi qui caractdrise les bons conslructeurs gantois. !i 

La marche ne laisse rien a ddsirer; malgrd la haute pression (7 atmospheres) et la grande j 
vitesse de rotation, on n’enlend d’autre bruit que celui des ddclics. Les diagrammes sont remar- 
qunbles :1a compression dans le petit cylindre ramdne la pression dans l’espace nuisible, au < 
point de ddpart de la course, exactement a la pression dans la chaudidre f 

Les proportions du rdservoir intermddiaire sont lelles que la ligne d'dclmppement du ' 
petd cylindre est a peu prds parallele a la ligne almosphdrique 

"” tent «“'* .1. vap«„ re „ Jo 7" 3 ' 

Z~T ?'*’ ““ >» »nfcn»lim, cLitoblo ™i I 

" “ 10 W *'» -V.1.PP.., OW coiininomcnl „» ta, Z 7Z 

n’offrent r 


rEdacteur en chef * APPLICATIONS DE LA . i 

M „ mjntj ’ • ADMINISTRATED : 


‘ _ 81, rue Ducale j 

L’lngeiticur-Coiiseil pnrail deux fois par mois. II conticnt nlusieurs articles nnrdnnnv 
S 8 ™®, 1 . * cs chaudiOrcs & vapour et loan accessed!« SiuM t vaS "t 
cs iiis^Mlh| L innS ,1S in‘ ‘ VC1 f n n ° tnmm < !ut aux tramways, les transmissions do mouvoment! 
1ms ml-nri • pondmle dean, do vapour et d’air, les machines et matieres cinnloyiics 
Jr ,, ™, industries specialemcnt dans Imdustric mecanique, le travail du boil 
el 1 Industrie lamiure, les applications de 1’eleclrieito, etc. 

ddbonnomont : 12 fi*. pour In Boiclrmn i*? r» , 

1 Union gdndralo dos Poatcs. Un numdro : l 1 ’ ** • |WUP 163 pays * 6t:,an S 9P3 falaant partlo de 


TJne page : Un an, 600 IV. 6 mois, 350' IV. 3 mois, 180 fr. 

V‘bi •" * 358 180 ■ .» wo , 

* ® ISO » » 100 » d 60 » 

on A j/TmDS atire ttS3U, Paris'. *’°™ E > Dueale, a Bruxelles, toutes les fournitures neeefesaires aux Compagni 

s Tel6phones| 


ct par tontes les Compagnies 
dc Tdldphones 

en France, Angletcrrc, Belgique 


Sonneries a grade resistance 



H et fils conducteuiis isolateur 

Fils do fer et d’acler galvanises 

. .gH y __ Appareils Tclcgraphiqitcs diver 

Buis tie Ituysbroeclr, 61 

]2 Setiembre 1881. 



VIA G E CO Hi 1(3 0 


‘ color! Ittoll dl rlngrazlamonlo. Dapprlma 
erano stall cohlorlll dol dlploml d’onoro 
ad alcuni fra i dottt Istiluti, ma poscla, 
ossendosl ossorvato olio II numoro ora trop- 
po grando , o die c!6 potova dar luogo a 
dollo golosio dl nazIonulllA, II glurl csoluso 
tulti gristltutl dal diploma o decrelft dollo 
somplicl loltoro. Agli osposltorl llallono sl- 
no state conforlto parocclilo modaglio d’ar- 
gonlo o parocclilo allro dl bronzo. 

Diploma d' onore : Mlnlstoro dl agrlcol- 
tura, industria o commorclo; Mlnlstoro dol- 
1’islruzlono pubblica; Stabiljinonto governa- 
tlvo per la fubbrlcazlono dollo/carlc-vulo- 
ri; Iatituto roalo topogratlco milllaro; pro- 
fossoro Paclnolll, dl Cagliari, II primo in- 
venloro della inaccblna magnolo-olotlrica 
Clio po! proso II nor..o da Grammo. 

Diploma di cooperaziom : latlluto dollo 
scienzo o loltoro di Milano; Mnsoo dl Fl- 
rouzo; UuivorsIlA dl Genova, Modona, Na¬ 
poli, Padova, Pavla , Pisa, Torino ; llcoo 
Spallanzani di Modona, llcoo Volta dl Co¬ 
mo, llcoo Volta di Verona. 

Medaglia d\oro: Golfurolll. 

Medaglia d’argenlo: Cnrdarelll, Coradlnl, 
Glnorl, Plcruccl, colonnollo Ilecagni, E. A. 
Gugllolmlni, nichard. 

Medaglia di bronzo : Bandlorl, Cavignato, 
Panlrior, Gornsn, Mugnn, Nigra, Sorraval- 
lo, Sommatl, Dl Mombollo. 


. I,’Italia paroa dovesso prosonlarsl nque- 
sta mostra lanto rlcca dl glorlo dol pao- 
salo, quanto poVora nolle appllcazlonl sclen- 
tidclic dolprosonto. Infalll, la osposlzlono 
'slorlca ltnllana, rlcca dcgll apparoccht rl- 
' guard anil I tcnlativl doll’ Accadomia dol 
,Clmonto o dol Gallloo, e dcgll apparoccht 
I concoroeoll gll studl o lo invcstigaztonl 
! del Volta, dol Galvanl, dol Mallo.uccl, dol 
I Nobill, del Marlaninl e di tantl altrl lllu- 
islrldofuntl, clio portarono un largo con- 
■' tributo al progresso doU’olottrlcIti, l’capo- 
sizfono storica dcsto I'ammiraziono od II 
pIA vivo inlorosso degll studios! o dol pub- 
bllco clio si alTollava a vonoraro lo pro- 
zloso reliqulo. 

Non cost 1’esposlzlono mddorna clio pa- 
reva senza intorosse; ma a poco per volta 
si fa strada la voce die ancho In questa 
vi fosso dol buono, clio talune invenzioni j 
gSscro degno di nota, o clio una fra tut-' 
HOpotosso conformaro all’Ilalla I), primato j 
kS lie noi progress! modornl dollo appli- 
B nl olettricbo. II Pacinotll, nativo di 
Blu e mddesld' profossoro a Cagliari, gio- 



REDACTION et administration 




187-2 -H. francoso Gramt 


rd Tra gll sclenzlali ; la lolta si 6 Impo- 
gnata naturalmente nel glurl. 1 giuratl 
Italian!, sostonutl validamento dagl' ingle- 
si, dal tcdosclil o dagll ainericanl, lmn 
Ipropugnalo la concesslono al Paclnolll dl 
j di un diploma d’onoro; ma la proposta is 
stata combattuta da alcunl franccsl, nl 
; quail pungeva di veder conforlta tinacosl 
[alto rlcomponsa ad uu vlttorioso compoti- 
j loro del Gramme; a loro gludizio al Puci- 
notti avrebbo dovuto csser conforlta una 
j modnglia d’oro. 

f Al votl, la maggloranrza fu a favoro dol 
CPacluoltl, o conlrlbuirono , — giova dirlo 
. ad onoro dol vero, — a formarla ancho 
-fbuon numoro dl franccsl ragiooOvoli od 
cqul. Cost II Paclnotti ha oltenuto la. plti 
villa rlcomponsa, clod II diploma d'oiioro, 
e non gli una medaglia d’ oro , como no 
ora corsa la voce, Un diploma d’ onoro 6 
Olalo pure conforlto'all'olllclna dollo carto- 
valorl In Torino od all' Iatituto tipograllco 
milllaro di Fironzo pol beljlssiml lavort'.in 
galvanoplastica. Agl’lstltutl dl flsica di iio- 
\ogna, dl Pavla, di Napoli, dl Padova', di 
Torino, dIJGenova o dl Pisa, al muron Brora 
dl -Mllaqo, clio prpsoro parto all’EsposIzIo- 
no rotrospolUva, s-ino slotl dosllnatl parti- 

rhomas-Alva Edison reprdsentc bicn i'dncrgic, 
litialive ct la hardiessc du grand peuplc amdri- 
n qui, on libertd, cn science ct en crogris, 

vapour, roulis ct tangago en nioins. A chaquo sta¬ 
tion dcs marchands montent dans le train, ofTrant 
aux voyageurs tout co qui pout lour dtro utile ct 
ngrdablc. Parfois uno troupe d'opdra ou dc comedic 
monte nussi, et donne une representation & toute 
vapour. On appelle train-boys les jeuncs gar?ons qui 
font le miticr do marchands nmbulants dans les wa¬ 

Edison sc fit marchand de joumnux, librairc ct 
pAtissier. Cc petit commerce lui rdussit. Alors il 
devint notable, il cut dcs jcuncs commis A son ser¬ 
vice, ot pendant quo scs employe's vendaient les 
merchandises qu’il avail nehetdes, ilselivrnit, lui, A 
sa passion pour la lecture. 

Un jour, parmi les livres qu'il achetait nvec scs 
economies, il se trouvn le Traiti! d'analyse tjualila- 
lii’O do Fre\cnius. Le jcune Edison s'absorba dcs 
hcurcs entidres sur chaquc page de ce livre qui fut 

once humnine, alors quo I'esprit de l'homir.e n’est 
i entravd par la science oflicielle, toujours prdte A 
-•r : Halte-IA! ct toujours portdc A sommeiller 
itement sur les lauricrs acquis. 

In Europe, les membres dc nos instituts ct de 
i acaddmies ddclarent avee une gravitd superbe : 
qui pent lire. En Amdrique, les hommes, non 

ventd, nul savant professeur nc lui en a fourni les 
dications premidres. 

Je nc connais qu’une chose plus dtonnante quo les 
Scouvcrtcs d’Edison, e’est la personnnlitd d’Edi- 
)n, e’est sa vie. Quel roman fnntnstiquc, dmouvant, 
icroyable et merveillcux on ferait avee la vie de ce 
dldbre dlectricicn I Et commc cette vie personnifie 
icn le gdnic hardi du grand peuple amdricain! 
Thomas-Alva Edison est nd le to fdvrier 1847 A 
Ailan, petite villo de I’Etat dc I'Ohio, mais son cn- 
ances’est dcouldc A Port-Huron, dans I'dtnt dc Mi- 
:higan. Son pdro a dtd tour A tour taillcur, jardinier, 
srocanteur, grainetior; e’est un fort honndte hoaime, 

riences sur les mntidres que Frczenius n’avait point 

Vivant sur le chemin de fer, n’ayaiit que des res- 
sourccs bien minimes, sa erder un laboratoire nu- 
rait scmbld A tous une impossibilitd. Edison rdalisa 
ce tour de force. Un coin d'un fourgon lui dinit rd- 
servd; ilyinstalln fourneau, cornues, creusels, sels, 
ncidcs et rdactifs, et en cacheltc, ct A toute vapeur, 
il fit ses premidres cxpdricnces; sans maltre, sans 
guide aucun, il fit son apprentissage d'cxpdrimenta- 

machines, les appareiis du chcmin dc fer, il sc fnufi- 
lait dans les bureaux du tdldgraplic, sc faisait cxpli- 
quer le fonettonnement des appareiis, demandaitles 
ddtails les plus minutieux. La tdldgraphie avail pour 
lui une attraction extrdme. On peut dire qu’Edison 
est nd dlectricicn. 

Toutcs scs dconomics dtaient absorbdes par l'a- 
chat de livres de science et par son laboratoire; il 
vivait commc un anachordtc, nc sacrifiant ricn au 

Il a eu dans ce temps-IA l’idde la plus amdricaine 
et la plus originale du monde. En allant acheterles 
journatix que revendaient ses train-boys, il npprit la 
typographic, puis sc rendit acqudrcur dc vieux ca- 
lu Dltroit fine Press ven- 
tir ddjA installd un labora- 
il-Michigan, it.y installs 
lositcur et Pimprimcur; il 
tdldgraphc aux stations, il. 

11 " 5lul luu, i 5C aisant quo enaque ouvrngc con 
tenait un peu dc cc grand savoir humain. Lc dic- 
tionnairc scicnlifiquo dc Durd ct les principcs de 
Newton fixdrcnt pnrticulidrcment son attention. 

Lorsquc lc train le ramcnait A son point dc dd- 
pnrt, A Port-Huron, nc trouvant IA aucunc biblio- 
thdquc, il y occupa scs loisirs A confcctionncr un 
tdldgraplic dans In maison do son pi re. Les ddbris- 
de mdlaux, dcsvicillcs potcrics hors d’usage lui scr- 
virent; cccifait, il travailla A construirc dcs nppa- 
rcils dc transmission ct dc rdeeption , il combina. 
Ics nmdliorations A apportcr A la tdldgraphie, il dtu- 
dia A fond I’dlcctricitd. 

Ccs dtudes lui coAtant au lieu dc lui rendre, 
ayant passd I'Agc de train-boy, il dut chcrclicr des 
rcssourccs dans un mdticr mnnucl; il apprit plu- 
sieurs mdtiers sans goAt, car 1’dlectricitd I’attirait. 

Un jour il put enfin entrer au tdldgraphc, grAcc A 
In protection d'un chef dc garc dont il avail sauvd- 
I'cnfanl por un ncte de courage et dc sang-froid. 

En 1864, c'cst-A-dirc alors qu’il n'avait encore que 
dix-sept ans, il inventa cc qu’il appelle lc systime 
duplex, qui consistc A fairc passer simultandmcnt 
sur lc mime fil deux ddpichcs cn sens inverse. Il 
inventn nussi un cadran ct un enregistreur chi- 

C’cst A Ncw-York, deux ons plus tnrd, que la 
fortune n commencd A lui sourirc. Appcld pour rd- 
parcr I'indicatcur de la Gold and stoch Company, 
non sculcmcnt il s'acquitta A mervcille ct promptc- 
ment de cc travail, mais il inventn un apparcil qui 
imprimait succcssivcmcnt Ics variations des cours 
des valcurs. Cette invention lui fut nehetde trds cher 
par la compagnic dc I'Union dcs tdldgrnphcs de 
I'Oucst. Dds lors, il cut les moyens desclivrcrA 
scs chdrcs dtudes. En moins dc huit ans, il prit 
soixantc-scpt brevets; ccci, mieux que dcs phrases, 
fait coinprcndrc I’nctivitd prodigicusc dc I’c x-train- 
boy. Fort jcunc, il s'est trouvd A In tdtc d'une im¬ 
mense fortune, car grand nombre dc ses ddcouvertes 
lui ont dtd pnydes 500,000 francs comptant, ct bicn 
loin dc songcr A s’amuser et A jouir dc sa fortune, il 
n consacrd cinq millions A scs cxpdricnces, il s’est 
fait construirc A Mcnlo-Parc un laboratoire splcn- 
dide, il a dtabli unc fabrique A Newark dans laqudlc 
sont employds trois cents ouvriers, il y exploitc unc 
dc scs inventions, un tdldgraplic imprimeur. 

Cet homme extraordinaire d 
mis lui-mdme cn mouvement p 
rant dlcctriquc, car il erde, invci 
•cpjqu’irtSntnVBAWStiniroU A Ilia 
vents; il n'y a guArc que ’trois d 
soient trds connucs 'cn France, c 

L ,-graphc; bicntAt A ceux que nous aimons et dont 
I rOcdan nous sdparc, nous n’enverrons plus un chif- 
jfon de papier toujours trds froid ct bicn peu expert 
|A dire : jc t’aimc. Nous pourrons envoycr uno 
j fcuillc d'dtain qui, rdpdtant Ics caresses dc notre 
•organc, lui portera mieux quo nos pensdes unc 
■ partic dc nous-mdme, notre voix. 

Ilourra pour M. fsdison I 

f; Pour finir ma silhouette, jc vais pidtincr un brin 
i i sur lc fnmeux mur de la vie privdc ct vous compter 
i-commcnt s’est passde lapremidre nuit denocesdc cc 

' Tout A la science, Thomas-Alva Edison con- 
1 naissait A peine t’amour dc nom, il n'avait jamais 
| pris lc temps de rdlldchir A ce que pouvait bicn dtro 
• ce sentiment-lA. Un jour, dans sa fabrique, il re- 
•mnrqua miss Mary Stillwell, unc jcunc fillc qui 
ijidtait son employd; il lui trouvn la physionomic sym- 
rbpathiquc, I'air doux ct intelligent; il la revit avee 
Iplaisir, puis il fut tout dtonnd de voir toujours 
jSapparaltrc dans scs rdves lc charmant visage de 
■ •miss Stillwell, il Unit par comprcndre qu’il dtait at- 
.."tcint de cc mal nommd amour, ct sans plus de 
-jprdambulc, il dit un jour Ala jcunc fille: « Voulez- 
;|ivous devenir M* 1 Edison? » 

, j Quel rdvc pour la simple ouvridre I Un mois aprds 
I cettc demande, il se mariait sans fastc, sans fdtc, un 
' repas rdunit les families, puis il emmena sa femme 
f^lans la maison, il lui en fit Ics honneurs, puis il lui 
dit: « Ma chdre Mary, installcz-vous et permettez- 
•moi d'aller passer un quart d’heure A la fabrique, 
vine simple inspection A fairc et jc reviens.» 
j Unc ro'is A sa fabrique, il entre dans son Inbora- 
ftoirc, et voilA que sa maltrcssc adorde, la science, 

- nuit, il dtait devantsa cornue; un des tdmoins dc 
''•son mnriage, passant par hnsard devant son labora- 
Jtoirc, y voit dc la lumidre, il y monte, croyant que 
Ides malfaiteurs profitaient de la circonstancc pour 
1 ijddvaiiser son ami, ct il trouve l’invcnteur absorbd 
Jdans son travail: 

_Quo fais-tu IA, malhcureux ? s’dcrie-t-il. 

— Mais tu le vois, jc travaillc, rdpond Edison 

que veux-tu que disc ta femme ? 

Edison sc frappe le front ct sc levant vivement 


Dcpuis huit jours, Ics Parisiens, impatients commc 
dc grands enfants gAtcs qu'ils sont, allaicnt chaquc 
soir a la portc dc l’Expositionl On n’entre pas!... 
clisait lc sergent dc villc, gardicn dcla portc! 

Us n’ont ricn perdu pour attendre. M. Berger a 
fait mcrvcillc: e’est impossible dc mieux fairc ct dc 
fairc plus artistement, car l’art jouc memo un grand 
role dans ccttc exposition scicntifique... ct commc 
cette lumidre, dclatantc ct pourtant douce, sied mcr- 
vcilleuscment aux tableaux, aux statues ct aux vieillcs 
tenturcs; die donne aux chairs unc transparence 
telle, que la Vdnus parait s’animer; les paysages, 
eclaircs par cllc, vous donnent tour A tour l’illusion 
d’un lever da solcil ct du declin du jour. Avoir rcuni 
la science, l’art ct l’industric, e’est unc idee grande, 
car cc sont li les trois forces constttuant la civihsa- 
tion ct Icprogris. Cette exposition ofTre dcsdlcments 
plus attractifs que ceux de l’cxposition du Champ de 
Mars, ct, vouslcvcrrcz, lc public s’y portera cn foulc; 
cllc est instance si imclligcmmcnt quemdme les igno- 
rants sont intcrcsscs ct charmds. L’dlcctricitc est la 
fee moderne; cllc nous a ddju donnddes mervcdlcs, 
clle nous reserve bien dcs surprises encore; cllc repre- 
sente l’avcnir ct cllc nous lc laisse entrevoir tout cn- 
solcillc par sa lumidre dordc parfois commc les rayons 
du solcil ct parfois argentic commc la lumidre dc 
I’astrc ties nuits. 

L’clcctricitc n’est pas unc science morose, clle est 
gaie, brillantc, ddatantc ; cllc a un quclque chose de 
surnaturcl qui charmc l’imaginanon, ct les tours de 
force qu’cllc accomplit ont un caractdre mcrvcil- 
lcuxqui sdduit l’homme. 

Or.lcc a 1’amahilM »>• qui a youlu 

invitcr la Presse vendredi, nous avons assiste a une 
rdpdtition generals dcs plus intdressantes. Gjimbetta 

avait^une'nombrcuse^our, irdait*uds entoure et son 

• ca)mc ct sa tisfait prouvait que les Belles lllois 
hurlcurs, s’ils ont cru le troublcr, ont bien manque 
leur vilain but, ils en sont pour leur igosillade ct leur 
mauvaisc et antipatriotique action. 

Dans cette promenade, a travers Ics sections di- 
vcrscs, a travers les salons, les musics, la sallc des 
conferences, je n’ai pu que constater un anaoncelie- 
ment de choscs curicuscs et trds intcrcssantcs, ] ai 
fait cette remarque, quc'outcs 1« inventions dlec- 

triques, si dies sont C omme but «teint, si 

Tiror dc la musique du feu, p’est 

Bonne nouvelle pour mes lcctriccs 
trique redd plus jolics les jolies, clle 1 
les laidcsj 

meurt dans une famillccst regrettai 
femme...ndepuis Plautc qui a affiri 
tile dc choisir entre les femmes, ca 
vaut ricn. iusqu’dDumas fils, qui Pc 
qu’il cOt trouve son chemin dc Dai 
du pays tie Job, mon avis est que 
moins bicn la femme qu’il nc conn 
le plus petit ct lc plu in ignifiar 
mais il est deux classes d’hommes p 

et son Ame par les confessions que 
font; lc prdtre nc connait que l’ctrc 

cause physiologique qui lesa produ 

sur h femme fait de la phrascologi 
ou moins spiritucllemcnt., 

Ccci dtant ma conviction prof 
penscr, monsieur, quel plaisir cc 
pouvoir traiter cc sujet: la /emiu 
jourd’hui,;le Papillon est tout u la 
lectricitd; il parle dcs Feuhiens, cn 
la place me fait ddfaut pour trailer 
ic dois renvoyer ma reponse A dii 
pourtant jc tiens A repondre dds 
paraphe ife votre lettre : « La fem 
dans la vi«j politique, cc « peu » c 
cc « tout -jdans la vie intime, vou 

uenie Modfmer 

lit iicnl'biix do pdu- 
ibles fcliimes <|Ul out 
providence dtis iiml- 
, et dont In grace et 
des immortelles do 
ii Ilotbseliild. 
lo bouheur dospnu- 

ii’o grande fuiblosso 
i Ion fetes splondidos 

ees sent, grand amateur et ami lies nets et 
lou- collectloimour eruilU. 

!«t'S II continue, nveo ses front*, In t radition . 

flu ' H t n qiielqilcs senliiinos settlement, 
out nlors quo lo consul (pluoral d'ltulio 4 
lil1 ' 'l'utils avail, par une folio ardour, com- 
J "t prouiis les bons rapports outre l’ltnliu et 
>1" la France, et, qtt’tiu delii des Alpus, ou- 
blioux dn passe, la plupart des jonmaux 
au " preebaioni la guerre eontre la France et 
quo le gouverncmenl italimi voulait cou- 
tracter un empriint do 700 millions, em- 
prunt do guerre, disait-ou, M. le baron 
ue ■‘Ujilionso do llotlischild, mu par un son- 
mil tiiuo'it de ddlientesse et do patriotisme, 
sso rompit les ndgociatious eulamees ot re¬ 
des fll8U l * usu ull:u 'S ur de eel cinjiruiit. 

1“roils fails n’ont pas besoiu do 
uounnciiiaires, Us park-lit haul. 

1 0 Notre cadre est ici trap rcstreint pour 
ire l l““ nous parlions des Ilotbseliild du l.ou- 
dies, de Vienne, de Franeforl; e'est le 

re Mono tenons ii dire quo nous no sonuuos 
le l ,as Israelite,.et.yue nous nitrous pus 
r/ Ilotbseliild. 

!o A'ous aurions jni parlor des Pereira, des 
o d tiolital, des Uicliofslieim, des Muutc- 
tioro ct do taut d’autres Israelites qui out 
x rendu et reudenl encore do grands ser- 
- '’ 1CL! ’ ‘ mais s ' l es lecteurs du Gome mu- 

dei-iio veulent bleu se rappolor uotru pre- 
0 mier article, its eoiuprciidront quo si 
t nous avons fait clioix do la Matson do = 
!( Rothschild, cost quelle est la plus 
» " lL ; et 1,1 I'lns gloriouso porsonnilica- 
i lion do la faiuilio jnivo. 

11V avail la une autithbse ii ddvolopiicr 
. qm llaltail notro luauidro do voir ot co 
, onoix nous pormottuit do la faire rossor- . 
lir area plus d’autoritu, ot, on conspinml, 
eoiuiuo une auie lioniidto doit lo fairo, les 
aetes barbarcs qui so comnioltcnt on eo 
inomeut on Itussio, actcs eriminols tlc- 
1 nnnianilo, quo la raison reproilve, 
e on proto-slant uvoc indignation cou- 
aiiti-sunutiqnc qul fait 
taut do lapago ot do si vilaines cliosos on 
■Ulemagno, nous avons ro.npli un de- 



. sc ssszfssirt 
^■latssix SSHS 

urft ^4S2r tai, "“ u “- 

a. l’autro uuo rouo pour idglor la rapiditd 
dos mouvomontsdo rotation do Papparoll. 
huivunt quo co mouvomont so fait d'avmit 
ou arrioro ou d’nrrioro ou avant, lo cylhi- 
dro, grtlco an pas do vis, cxdculoro un 
mouvemoutdo Iwiislutlbu lioriroutulo do 
drolto a gauoho ou do gauclm ii droite. 

L.apparoil conduisant les vibrations est' 
uuo espdeo d’entoimoir qui i-eposo sur uno 
tigo on for; collo-oi so trouvo porpondi- 
ciilaireiiiont sur un autro morcoau do for 
' 801 '" 11 ‘“Pproclior ou ii eloigner l’ins- 
ti uinont du cylindro. Cot ontomioir so 
■' nomposo d’uno omhoucliiiro pour y appli- 
quor la bouclte, d'uno plaquo vibranlo on 
tolo do for circulairo ct tros mlnco.placdo 
lmniLclmlcinciil demure l’cmbouclmro, 
'ossortarnid d'uii stylet ot placd dor- 
iiui-u couo plaquo; il ost supportc par 
t uno tigo on ouivro ot rolitS uveo la pluquo 
uu moyoii d un petit morcoau do caout¬ 
chouc. bolon qii’on rapproolio ou dlolgno 
i i Liiionnoir du cylindro, lo stylot ost ai>- 
puyo sur lo oyllndro on diolgnd do lui. 1 
Lorsqu'on parlo dans l'oiitonnoir, la quo los dilldronts 
sons sorlis do la bouclio Vieimcnt la fran- 
I 1 ;' 1 '’ 01 lc stylet, qui fait corps avec la 
plaque, vibru ausni a ruuisson et iuipri- 

cvliiidro 0 , "“ i ‘! U rec °nvraut lo 

ojhudi i, ct ai de laqucllo 11 est on contact, 
pout point, un petit ti-ou. 1:„ m£l „„ 
oui 1 S nil moyoii do la manivclle it main, 
on fait executor an cylindro uno siirio do 
liiouyonionts do rotation riiguliera, et il 
oil resultora uno courbe lidlicoldalc nor- i 
taiil uuo sdrie do iiotiU points plus ou . 
looms proiioiices, suivant quo la tonalitu 1 
. o .i aura old jilus on moins i 
1 par consequent, la phrase pro- i 
. ucoo dans 1 oiiloniioir so trourcra gra- i 
yog sur la fcullle d’etaiu. On n'a ntus au'-. i 

■ ' ral 1 ' 6?U M.l‘ r - dll " S UUD '' l I’sU Ubro, et 1 
cola iiidiSiliiimont. On eloiguo it cot offol, , 
d<i lil reuille 'I’dtaiu; on imprimo c 
Ai oyhndra uu mouvemeut do rolatiou oil s 
■ us luvorso ot Oil lo rumdno uu point oii i 
U so trouvuit avant l'umissiou do la voix * 
On rappropho lo stylot do la fouille dVtaiii. 

ot, onsorolovunt, il fora vibror lo rcssort 

>.UO,'.'°°I la<iq “ 0 7 t plaquo do Kilo qui fait ' 

ooipa avoo Jul; otcotto vibration som 

I" 0 ' 0 d ° Colla < l u ‘ a ongei >- v, 
did les trous; les eons raprodults oar la '! 
plaquo soraut done uussi los monies. ?! 
n , "J i a “ S cot a PP“ rail Pinconvd- 
mont quo, lo mouvomont imprimd an i; 
cylmdro n’dtaut pas absolumeut uuifor- ' 
nio, o pliouographo no pouvaitpasrondro n„ 
oxactoment la totalitd do la phrase 
iioncdo; a cot effot, on a romplucd la maSi- ™ 

v olio u main par un mouvomont d’horlo- ,.v] 
gone qui doimo au cylindro un motive- 
ment do rotation reguJier. 
f ,,i? W* ost spdcialomout af- L' 
fecto a la transmission des uombres co SS 
qu il fait plus rapidoinont quo lo tdld- ion 
Biapho Morse. Dans les Etats-Unis on s’en 
sort pour fairo conualtro aux diddrontos c l,i 
ulles do commerco les cours dos hallos ot du 
des marohds. JMj 

Le quadruple#-telegraph permot do col! 
transinottro quatro ddpdolics 4 la fois par nmi 
lo mdmo ill. Au liou do destination, 1’ap- sidi 
paroil rdeepteur les ddmdlo automatiquo- U.( 
mont ot los roconstituo distinctos ot sd- piti 
pardcs. j lrcl 

Vilectro-motograph est Important sur- iinn 
tout sous lo point do vuo thdorique, puis- P 
qu’il ddmontre, quo dans los apparails td- qua 

i aimauts. Uno tige ludtulllqllo iiolhtuo, 

. oinnuinclieo dans uno sorto de imrto- 
t crayon, ost miso oil mouvomont par le 

- corn-ant oloctrlqiio an moyon dbni petit 
, arbro do coucho ot d’Uil oxcouti-iquo. 

’ ra!; 0 .“ u ? llt . n,<!8 . t ,Mls cuuUuu « 11 ° st 

■. to "»*«c,"t «rftco a,uuo disposition parti- 

- < i ul ‘ ur( ; <<“ * “PPareii. (Id shut les sommots 
. do trais petite ednos qui ilaus Pospacc 

“ »»c revolution a Poxcoutrlqlio vieiinont 
• so iiiotli-o ou contact avoo l'almaiit ot rd- 
tabln-lo couraut. Par consijqtioiit, si. oil 
proud Oil main lo pot-lo-oral-uli nl-md do 
cottc tlgii iiidlulllqllo ulolilloi ot tm'im 
s on soi-Vo jioUi- ddrii-o cdiilluotl'lino piniuo 
ordnialro, on ayaut copolulaut solu do la 
tomr poi‘|iuinlloulalra mi (luiilcr la 
pliraso dci-lto so tl-oliVoru forindo par dos 
lottras traedcs eh -iiotiitillds. dgnlomont 
distants los uus dos uutres ot qui no los 
dotacllelit pas du paplor. Uno fols la 
phrase dento ou lo dcssin praduit, on 
« a qu a praudra la foulllo blanclm ot , au 

moyond un rouleau cuduitd’ouci-ograsso, 

I iiiiprunor sur cotlo socondo fctiille. 
b operation peutso rdputer iiiddllniinonl 
1-vidouiinoiit, les udgociants qui out sou- 
vent a envoyer uu grand nombro do cir- 
culairos Sdlublablos los lines aux autres 
onl l« .... moyon faoilo iioi.-soulomoi.t 
d accdlerer 1 exdcutiou do lours dcrituros, 
0,, I C0, '“ <?» rdaliaor uno dcouomio sur 
le-|iiix doroviciit d'uno impression lillio- 

I-aerophone repose sur cello l-oinaniuo 
i jJ l V> on parlo dans un couraut 

duir la voix aujunentc d'intonsilo, ot 
Imuophono domic u la voix uuoliitonsild 
i«0 fois Kiiporioui-o a son iiilcusild uor- 
lualc, do lollo fa.;on qu'en parlant dans 
cot iqiparoU, on JHiurra so fairo entendre 
a uuoi distance do deux lioucs. Nobs- 
u eii dirons pas davantage, pulsoue nous 
avons aujourd'hui des apparails do cotte 
osiwco.boaucoup plus porfeotioiinds; il i 

suflit do rappolor quo Fuorophouo a etc lo I 

precursour du telephone. . 

J.l-'.innn. j 

pm- Pocli otfenicnt dos sbuduros qui rdu- 
iiissenti filoiix mdtaux dont olios sout 
compose ,- onflri. la- tibisiomo compre- 
iimit lu le sccondairo, qui apropromcuC 
parlor i st jias two pllo piiisqu'cllo no 
produit atd'dlectrlcitd ot qu'ollu no fait 
quo do ssorver collo-oi ot lu dopeusor 
quaiidli aoiucnt cat vouu. 

‘N’ous iparloroiis plus tai-il do colto 
pile, d'i mition touto luodoi-nootqiiiesl, 
ou quoli t sorto, a l’ordro du jour. 

I.aclu »3 comprond los machines nia- 
guiSto-dl itriqucsot dyiiumo-dlectriques; 
nous iij illorans tout |iai-ticulioroinoiit 
1 attent ides visitoura sur cos machines 
qui non uriiisseiitsldconomiquomcullc 
Uuido i itriquo, out l'avaulago do no 
pas s'di or comme los piles el soul tou- i 
jours |i i» 4. fonctloiinor. j 

Daiis donxldibV grolipe, classo.3, on 
trouvo cdbfcd,' flls ot acecssoiros aer-. 
vmit n transmission do l’dlectricitd. 
Cost ai dans ootto Ctusso quo figureiil I 
los pur nerres. 

Lo ti Smo groupo comproud les up- 
paroils i doivont sorvir do niosuros 
oloolrii . Lo congrus iiitornutional d'o- 
loctrlc rdccninieiil erdo s'ocoiqeora do 
Uxor it nlti unique do mesuro died ri- 
que, cIBciuollomciit cotto unite vurie 
suivauB dilTurouts jniys. 

Vicnffimilo lo quatridmo groupo, qui 
olTro Jiffllont lo monde un grand intc- 
rot; cHjoii olliil colui qui comprond 
Vapplittht da Veleetriuitd. Cost ml do 
cojix qWotis dtiidiorons uvoc lu plus do 

•Nous iio nous lassoruiis pas do rdiidtor 
uctlo assertion et nuns njonloroils mdmo 
quo In raison doiiueo par notro eonfidro 
cotto Infraction aux lois do 

II ost fort dlrango, d'aillcurs, quo lorsqu'il 
ost dangeroux jiour les granites porsounos 
do circulor prds des imiehinos, dei entries 
gmtuitee rniimt ueconliet lurgcment uux cn- 
/urate dee deoles, olio/, losquols In prudonco 
I n'cat gdiidraloiiioul jias la qunlitO domlnanlo. 

&EUS - E'Q&t-HSe 

l.u ills do M. Prud'iiouiino, — jduiiohoniu^^ 
trds distingud, — vient d’elru nommd pro- 
curour do la lldpubliquo. Il a 4 fairo sos d6- 
buts dans uno affniro d’infanticide. Prenant 
une attltudo solcnnollo, il so tournc du cold 
do la Cour. 

— .Messiours do fa Corn-, ilit-ll, vous me 
jieruiollroz do vous^ fairo romarquor quo de 

monstruoux, oarc’ost colui qui lend 1c phis 
4 ddsurgunlscr la fainillc. 

uo ontni deux dailies (gonre Zulu 
0S licurcusc, toil protcctour ost u 
, limis il no to rofuso 1-toil, 
as beau dire, co viellhml est u 


1 L'oxiwsilioii d'dlootrlcltd, dont los tra- 
vaux sont malhtoiimit 4 pou prds tor- 
rnmea, ostappoleo 4 l-dvdlor au public 
do vdritablcs morvolllos taut au point do 
vuo sclontUlquo qu'au point do vuo prtt- 
ttquo. 1 

Nous lo dtslons d'aillours blcn avant la 
lln dol installation : l'oximsltion aura un 
plcln succds, car non souiomont olio iutd- 
i cssera les homines do soicnco, mals olio 
oxcllera au plus limit point la curiositd 
do tout lo mondo. Cotto pi-ddictlon s’ost 
plcinoluont rdalisdo, nous n’on voulons 
Ijour prouvo quo la ttatistiquo suivanto 
dont nous garantissons 1'exactitude : Lo 
jour do ' l’ouvorturo, quoiquo poraomio 
n ignorat quo los travaux dtuient iua- 
Chovdsot qu’il dtait impossiblo do jouir 
du coup d mil raorvoilloux qu'ofTro lo na- 
lais dclaird 4 la lumidre dloctriquo, oil a 
compliS oil tout fi.80A entrees; fo londo- 
mmn le chiiTro dtait do 3.10O ot lo troi- 
i our ’ c’cst-4-diro diiuauchc dornier 
t/1.008 promonoura iinpiitioiits so in-ooi- 
pitalont dans lo palais pom- rondi-o uno 
preiuiLio vislto uux Ingdnieux apparoils 
linnginos par la sciouco ot l’industric, 
Pour nous, grande n dtu notro umotiou 
qumid, pour la promidro fois. hour «>»„ 

S ilquo agrail do Gray (Jligraphe hurmo- 

La Ao 7 conticiil los Idldphones, 
s mici-ojfflios, photopliouos avco lours ap- 
i- jilicatin. A cdtd do cos curieux appa- 
1 ‘'C'lc, oBouvora I’inslallatioii des postos 

i tdldpliBiics; l’audition, dans lino sallo 
spocinffios chants do l'Opdra,co qui lui 

I.a. 8 ost nlscrvdo ii I'dclairago 
ulectH , dont nous avons dojii parld et 
dont 1 i parloroils longuoniont encore. 

Dan classo 0, nous trouvons les mo- 
tom-s i riques, lo transport dos forces, 


Viom it onsuito la classo 10 (dlcclri- 
citd m« ailo); classo 11 (dlcctro-chiinio); 
puls la asso 12 dans laqucllo figurant 
los aim its, los boussolcs, los dleotro- 
aimanli t tons los instruments do preci¬ 
sion; m in viont la classo 13, qui eom- 
pyend lo is les apparoils oITrant uu inld- 
rdt spit il uux const i-uctours et aux spd- 

Dans 11 sixidmo groupo (classo 15) sout 
phicds ti utes los collections d’oiiviugcs, 
los plan , los cartos so rapporlaut ii 1*6- 

lcctricil . 

La cluso 10 ost trds iuteressanle au 
point do vuo Uo l’histoiro do l’olectricitd. 
L4 so troiivont classds uuo foulo d’nppa- 
reils'-pliis ou moiits aucicns ot d'instru- 
mduts- ayaut sorvi a oxdcutor dos oxpd- 
l-iohcos cdldhros. 

Happolons soiilemoiit aiijomxl'biii ii nos 
lecteurs l’iiistallution do co petit chcmin 
do for bijou qt ii nous conduit do lu place 
do la Concorde uu Palais, lo canol dlec- 
trlquo do M. G . Trouv d, „„i naviguo sur 
Uno riyidi-o lim pu H C n UU ot 1’iidrostal di- 
l-igcablcqu'oXposo MJ G. Tissiimlici-. 

Nous osperonu ravouir loiigiiomoiil sui- 

cotte odour '.’ Monsieur vout pout-dtro parlor 
dos creveltes t Elios sont tros tratchcs j olios 
no font quo d’arriver do Cherbourg. 

— Sacrd nonit Elios sont venues 4 pied, 

Un pochard, huUl'tant un tounoau do li- 
guos ouvort 4 la porte d’un epicier do la ruu 
dos Lombards, est subitcinont pris d’uu vio- 
lonOnal do cuiur..., ot taebo un ronard au 
beau milieu dos fruits. L’dpicicrsortfurieux, 
lo pousso on lui disant: Comment, goujat, 
vonir fairo dos bori-eui-s parodies dans'mes 
llgues .’ Lo pochard, apres s’etre ossuyd la 
liouclic av-cc su niancbo, lui l-dpond d’un air 

croynis quo c'dtnit dos prunoaux ? 

Deux lvrognes desccndent la rue do la Ito- 
quotte, cn ddcrivant sur lo trottoir des cour- 
bes ausst fanlastiquos quo multiplides. 

— Farceur do Galuohet, dit l’un d’eux, cn 
tro doux hoqucls, tu ne m'y reprandras plus 
4 l'onlerroment do ta fommo 1 

Une rdflexton do pochard : 

C’cst-y dtonnant, q4! disait-il on passant 
dovanl la boutiquo d’un boulangor; voi!4, 
un mtlron qui prend du bois pour avoir 
do la braise; mol, il faut quo jo donne do la 
braiso pour avoir du bois. 

Lu th&Urc iluGyinnaao viuntdo i'upi^auii*- 
ter Les Elections, une pi6eo angl.iiso do Ito- 
berlson. ndaptdo A la scfcnc Iiamjaisc pai 
M ,no Gustave Haller. 

L'etto pi6co a cu plus de UiUO reprtaenta 
lions en Andelerrc: e’est un sneers nbeno- 

pus specialoment de la luour pliosphores- 
cente qu'oii observe dans le vido baro- 
mulriquo durant lTigitntion de la eolomie 
mercuriollc, nous oilerons an commcn- 
eementdu XV1U" sieele, Jean Ilernoulli 
qni voyait, dans ee phenomena un raouve- 
menl do l'ether qui anralt p6notr6 par los 
pores du verro dans eo quo l’ou appolait 
lo videde Torricelli. Iincolemps-la, cette 

1 phosphorescence (Stall pour presquu tous 

■ les physicians un phosphoro parUculicr 
le noaliluca mcrmwialu. On s’occupult 
plus d’ailleurs du phosphoro quo do l'e- 

■ lectricitc, eb corps otrangc, luisant dans 
los lonobrcs etuit la eurlositb do tout lo 

> moudu. 

(/I euivre.) Auou'ini Uuunet, 

Nous prilvenons not nouveaux leatoure 
tiu'ils nourront toujours so procurer aux 
bureaux da Gbnle Modefne, 17, rue 

villcs do commereu les cours (los hallos ct 
dos marches. 

Le quadruple# - telegraph pcriuot do 
transmettro quatru dbpochcs is. la fois par 
lo mbmo 111. Au lieu do dcstinaUon, I'ap- 
paroil reeepleur les ddmele nutomatique- 
raent et les roconslituo distinctoa ot su- 

Velectro-motarjraph oat Important sur- 
Jout sous lo point de vuo thuorique, puis- 
qu’il ddmontre, quo dans lcaapparoils 14- 
lugraphiques do Morse, les eburants pou- 
vout etre obtemis sans lo sccours d’un 
eloctro-aimasit.' On suit quo daus le 1414- 
graphe Morse, un stylet imprime au lieu 
do reception sur lino bando de papior uno 
aei'ie de points ou de traits, apres quo lo 
courant magndtiquo eat retabli au moyou 
du contact avcC l'bloctro-aimant d’uu le- 
vior plaod au poiut d'cxpddition. L’dlcc- 
tro-motograph tonctionno sans magnd- 
tistae; ou frottant avoo lo produit d’uuo 
cotabinulson chimiquo uno baude de pa- 
piOr, on obtiont un ddgagoiucnt d’dlcc- 
tricitd qui ro fait scutir h la station do 
reception. Par un frottement plus ou 
inolns prolongi, on rdallso dgalcinont 
uno sdrio do points ot do traits comm- 
pondants aux diffdrentos loltres de I’ol- 

La plume itealrique cst uno application 
du principo do Faruday rolutif aux cou- 
rabte d'mduction. L’apporoil bo com' 
poso d’uno pilo relido u. doux dlcctro- 

clieves et quil dtait impossible du jouir 
du coup d’ccil merveilloux qu'oilre lo pa¬ 
lais delaird 4. laliimidrc ulcctriquc, on a 
coinptd cn tout hJBOh entrees; le londe- 
main le chifire dtait de 3. l60 ot le troi- 
sieme jour, e'est-a-diro dimaiiche dornicr 
14.008 promeneui-s impaticnts so preoi- 
pitaient dans lo paliiiH pom- l-ondro une 
premiere visite aux ingdnieux ap'pareils 
imagines par la science et 1’iudustrio, 

Pour nous, grande a dte notre emotion 
quaud, i>our la premiere fois, nous avons 
peudtrd duns cc palais Cdcriquc, aussi 
n'avons-nous fait oncorc quo joter un 
coup d'uuil general sur chacuu des six 
groupes, dont cst composdc noire, gi-aude 
Exposition nationale, nous nous conton- 
lorons done pour aujdurd'hul d’dnumdrer 
les machines el instruments dontsecom- 
posent cos six groupes lesquols sont sub- 
divisds en seize classes. 

Dans le premier, nous trouvons toutes 
les machines servant ii produire del'dlcc- 
tricitd. La cla'sso 1 comprcnd les ma¬ 
chines pi-oduisant do l'dlcctrlcitd par lo 
frottement (dlcctrlcitd statique). 

La classc2 renformolos piles; cos piles 
sont divisdes on trols catdgorles: 

La premiere qui comprond los piles 
ordinairesou prlmairos (piles do Volta, 
Wollaston, Daniol, liunson, ole.), onun' 
mot piles produisanl do Pdloolricitd is 
l’uide d’un acido atlaquaut un mdtal; la 
douxiemo qui comprend Iob piles tliormo- 
dlcctriqucs qui produisent do l’dlcctricitd 

Ilappclous scnlement aujourd'lmi ii nos 
lccteurs l’inslallation de ce petit chemiu 
de for bijou qni nous conduit de la place 
de la Concorde au Palais, le canot dloc- 
triquo do M. G. Trouvd, qui uavigue sur 
une rividro lilliputicnuo et l'aerostal (li- 
l-igcablo qu’oxpose M. G. Tissandior. 

Nous esperons reveuir lougllomeiit sur 
toutes ces mervoilles dans noire pro- 
ohaiue causerie, tout on etiuliiiiit dans 
des articles spdeiaux les apparoils ou 
instruments, les plus pratiques el sur 
lcsquelsjlo visitour doit principalcmunl 
fixer soitaltcntiou. 

ContrsirsmoiiL ;ms usages ordlnniros pour 
los expositions <lu Palais du lTudusIrie, II ii'y 
aura pas de Jour d'ontrito prnlullu Cotlo nio- 
suro a (Sid comnminlCo par la nCcessltd do no 
pas avoir trap d'eiicontiireinoiU, A cole do ma¬ 
chines <|ul pouvont filro dnngurouscs. Du rosto, 
nous savons portiiionimonl qu'oiim-cordora 
largonioutdos ontriSos gratullcs pour los Ccolos. 

N'ous 1c dlslons dans hotre dernier article, 
it cst fort rcgrottablo qu’uno exposition, 
•'but le but principal est do donner it tone 
l'auiour dos scionccs,'. no soil pas ouvertc 
gratuitement au public uno fois ou deux 
jiar somalno. ' 

bu tUeAtrc duGyinnaso vionl do reprdsen- 
• Lee Elections, une piece anglaise de lio- 
rlson, adaptive A la seCno tranealse par 
"" Gustavo Haller. 

Cette piece a ou plus de 1,/itiO reprCscnta- 
ins on AnElelerrc; e'est un succes pliAno- 
ftnal.Saulomcnt pour nous autres Franqnls, 

lnunal.SouIoinent pour nous autres Franqnls, 
la donnbe ii’est pas noiivcllo: .. Un gentil- 
lioiumo pauvi o traraitle, en attendant qu'il 
puisse faint vnloir certains droits, i aime 
uno jeuno llllo riche quo lo Ills d'un imbecile, 
imbbcilo lut memo et nrelu-millionnniro, 
(Wsire epousor. Aux elections, les doux rl- 
vaux sont un presence, sollicitant lo mCrne 
mandat dans un boui-g .. pound » ct malgre 
toute sorto d’intrigties et la puissanco de 
l’argent, lo gontllliomme pauvre cst elu, ses 
droits A une grande fortune sont reconnus 
ot il Apoiiso la jeuno personno. 

Tel est lo cauovns de cette piece agi-emon- 
teu du furces nnglnises qui out pour nous 
<> un gout do torroir brltannique » un pen 
trap prononce. 

I.mpressons-uous do dire quo MM. Cliar- 
pontior, billiard, Tonne, M"'° Itaynard et Ge- 

interpretent vrailuent d'unomaniero romar- 
quublu, avue boaucoup du tenue et d’on- 

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(( C( 

r&mmatt lo&alf 

Iu concluding tlicso remarks nbont intermediate lights I must again etato 
that, allliougli raoro oxpensivo por canillo power, they may bo economical 
in many eases, owing to tlioir not wasting tlio light by illuminating ostrava-' 
ganliy tlio objects in tlioir immediato vicinity. 

Menlo Park Scrapbook, Cat. 1069 

This scrapbook covers the period 3une-November 1881 and contains clippings 
relating to the Paris Electrical Exhibition of 1881. Included are detailed 
descriptions of the exhibits of Edison's competitors, including Faure, Gramme, 
Jablochkoff, and Siemens. The spine is labeled "T. A. Edison No. 51." The book 
contains 142 numbered pages. 

Blank pages not filmed: 1-7, 74-142. 


kj W^A/vt- ivrt .h WV- WW.M/VN 

' ■_^^Uj. vHayXi_ 


i'll': Iricilii u out: mi .grand rdlf dans la 
ti'. cl sa lumieiv. a illuuiii.u los boulevards. 
. .si •[■■> les ir.unuinenls publics, 
i l/appliCiiUon In plus liuu.'uiup ill! r.'leclri- 
\ciluuci6 la.lo.'iiicnue do I'Opira. all, aim 
thui'cii 1 ': dr I t Sat i a aiutricainc Kilisi I. 

\ !-■» .epresenlunis ii I’arii do ii'lln S icii'lii 
sc sent nioiilris prudigui’* ct nous devous 
MBn remcreicr ; ils n dlairnt puiul leuus a 
' ■inifcsliT lc U jiililel. iimis ils oul vuulu 
parlieiper i lo fiilc dc la F"aniv, cn ri'ion- 
ifiaiss»nce dc cc i|iic la France a parlici|>£ J 
/la gramlc file dc la di'liiraucc lie I Aiutrl- 

, poix, Re;. , .. 

, RoqucHc, rue Scilaine. .... 
: dices, faubourg Saint—Antuii 

voli, faubourg Saint-Denis, fauLoiiri 
ainrlin, rue Suinl-JJarlin, 
rue de Rambuteau, 

, A . u . m °y en d’un raicanisme 'dca nltis 
nn?nS a“ X ’ q w P S u !i 8 L adapter &' tout np- 
m a »n U .i ??*»'•¥• E ? drta eat arrivd A aifi. 

par une simple pression 

.tocsin 1 agy: 

. iwi'onncf] quo pourrait intdressdP’ncnf 

mente aans les bureaux du journal 

, SEssKa'aas 

excibicattbo capotiiioo, o 

macliinu i|ttinzc cents lauipcs dans lc palais 
tie I Industrie cl duns les Champs-Iilysces. 
Cod nous dunnera une idCc dc r(cluirago 
Je Ncw-Yui k. organists par .11. Edison ct au— 

ouvners pour inonier les II.,000 lauipcs dcj& 

Nous n'entrorons pas dans les dblails dcs 
diircivnlcs fetes organises par cliaquearmn- 
disscnirnt lie Paris, ct i|ui eonsislcnt presi|uc 
loulcs cn ri'iroiles. coin oi ls tlii'iilres foi'uins, 
lials clianipPIres el jeux dc y a 
en rivalili culre urns les aiionilisscinenls.'cl 
Foil ne sail lci|ucl a reuni le plus d'atlrac 

Hue dc III Guullc d’or, de Fjnndrcs, dcs 
Charhonniers, Lcpic, Hca Lourg, Quincam- i 
.r, Philippe do GiSt'iiril, lie la 


department rctcrri'il uxeli 

At llm Untied Staten hc< 

I.. llm lVonldri 

courtnlu. l'lio Kxlilbllloi 
tmnnluriiicd nil i ,cttirUl 

Slnti'S unit port of llm n 

riio clcotrlo 
not jot la working ordor. 
trio boat anil tbo lo-cnllei 

traded o gnat itcnl of ulle 
Play prmiitaoo, when coni] 
tlio inoit popular la llm exli 
nlltlit 000 Editor, Halit, 

„' . and Morsel r EdUoti. fau .wonV-»orid -ir'ldol :«■««*»» Tronro' 
«i Inmorljy liU :improTemeat. ujSn tlio tolo-; 'afS Scm'imii 
b l plion*, by.hia phonograph, and especially. {J“ “• 

bis cUolU to solve tho problem of electric IroiiVoomploln 11 

Interest In .be Frcnbliliadpart 
icni boat*, and j'uiuvtaoJ&bttlcal , 
clictrfuUy may bo. atorod.- Tbo 
not iimt-u luuroadvuncod.tlma 

lb othor thill Re, «ho loads tho world. 

a. ail% |~ 



I 0, bUik tLaJ#:. 
' it 1VW" 

^V v ^y| 

lia ICiecirlo Exhibition In Pnrli. I 
, is to bo regretted that our tthnro ia tli< 

lit uUould bo behindhand. Americans 
o .nutty for energy would ospeot ia tlio. 

exposition of elcotrical soionoo 
riciuisshould tako n.promlnorit part., 
■o in no department of liuman ondoaror 

t electrical Bcioncc. Oiio of tho cdrlioat I 
most enduring cluimoof Franklin to lm -1 
talily was a discovery in olcctricity.- Wo 
to Morse tbo magnificent dlMOYOljr'ofi 
telegraph. Moll Las suppleroontbd lliis; 

U. Sainte-Claire Deville, do l’Acaddmie 

public losiuy. u is lu o very mir.-a.iy .tuts. des 8C iencos, vient do mourir it Boulogne- i 

I.di.u", .-smutur,,. «... .d.j,Tt ;,r mnci. curi BUr _s e i n c, apris uno longuo maladie. 

few d.v, ..pnruto in tbo EdUim «iio»-. iL Saintc-Clalro pcville dtalt. nn do i 

\vht.ih w ni to ninniimiuicd by four nos plus savants chiaiistea; sea travaux. 

n ll pq',” 0 lurupv E unnt considerables, et Vce'nvre qu’il laiss e, 

most .pam or iho furi-iipi rmmtrics rupee- :’Stfrrl6ro lui des plus Importantes. - Sans] 9 

oE™u jEcomo'nrf'imuoud Icompter se» rccherches snr aluminium ,t | 

a morion." cornnpnndrtiu »iuto tbot I'mnCT • qu’11 a, pour aiusi dire, ddcouvert uno so- , 

lun-ni. to Imvo brat rrollted tbo eclrntltlo unit .COndo fbU, ct dont il a, tout au moins, 

r^]r.'q| m | P !. rU !.' l °" t“Id.^.u-vv'T'.’ uot inisenrelieflespropridtds sptSciales, on. 

bavins .t«. brinit ber cal,ibits * from n • doit porter 4 Bonaclifune nouTolle rndtho- 

diiiunco oud lunn tin. cucrjjotia man- de d'analyso cliimique, dito do voie moycn- 

‘l* „"’ 0 j„'|'""“'7***"5 . ue, qul conBlste dans Vwnploi exclusif des - 

M.rtnoTnn* oLopemtcd.* Jlrnoiij! Iho privnto | ' ]gaz et dCB rdaOlifS VOlatllS. NOUS UO SOHl- ! 

cahlblta which created file moat Inlrnat In tbo I mCB pas aSSeZ COmpdtCntS pourjuger>: 

J i "I unt uro ir «■» ct ctri «i > Ba valour cclte importante ddcouverte. 

-wiiicii electriciiy°iuay ta .tnndTm (Icnuun Nous nous contentorons done do la olter 

department la not tnuoli mom'ndviuiccd than j a YCC les aUtrOS travaux de SI. Sainte- 

1,'m ^ Claire Devine. . 

End, Tir Amlricau. llpi"In nmeb or Z En 1849, il fit connattro la preparation 

fearful unreliability of French workmen, who et les proprlGtds do I’acldo nitrique anby- | 

■mtoUnMUnoruaniinof time. air. dre; en 18B2 i] publia un important 

HtuZf^tat“ir1K5j! section mdmolro sur les carlomtcs mitalltQUes et 

nritletboTbtjAtm b'mnsnla und tboOporu. Ho UltrS comiinaisolis. Puls, Yiennent S6S 

, claims that ho will in. able to rnako imrform. 6lud(jg 8Ur \'aluminium. Il' exdouta, SUr 

SKSTiTtiT Xm,X£To eo mdtal, de nombreuscs experiences, ^ 

tbo nppllcallmi of elrotrtclty to military and I’usine'do JaVOl, de concert aVOO SI. UO- 

aaliotiutic phrpoara. Tbo K.lsliab eoremment brav et 0 btint plUSiOUrS lingots qui HgU-; 

rerent * 1'Exposition de l859. Un' impor- j i 

- —— ..j tant ouvrage sur cctte question, qu-U pur \ 

1 J-XitoH A NAaSr, \*V. v V V\ blla en 1859, VAluminium, ses proprUtis -j 
dw*»MA/Y\Ja «7> w \ , / a t, r i ca tion, le flt nommer membre 

.. ' ELECTRICAL KXIIIIIITION. « SU [wnauwn, „l<t U fit na- 

PAttra, Aug. ll.—Tho itmuguntihm: of-tlio^e l Acaddmie des sciences. Puis il nt pe | 
Intcrnallonoli:ieelrlrnlK.IUbUI„uliuroye.tunlay wnaoiraltre dCB (StudcS BUr US IrOlS ilalS mOK 
nZn?. T oaM,,m„°;']rTbo m“r“mb,'»y cuhires d« silicium, un mdmoire sur la 

’itt&zgsssfi *--- 

Knalnml and Oonunny occupy tho moat apaco of tho 1818, aUX Antilles, et avail fait SCS U C 
o rC „S'rrT u |,] ,: ' r ‘' ),, 77. lc ; 1 at ll, “ O;"! 1 '’"”"- »•’“ en Franco, En 1844, dfjS connu par sos , 
travaux, il fut cliargd d’orgamser la 1Fa-, , 
wtlm 1 ,” 1 ; 1 .'! 10 niut ro'iinicreiat ii»l»ii.„c o oftbr-Eibt 0 „u6 dcs sciences do BeSanson, don 

fut noimnd ^ - ^^d dans la 
tho onorgotlo mauncr in which tboOovenimept Tolo- 4 g*:f \\ euCC&la M.. a * aan ' 

ffmiih .lici>artinciit;nnd the .MfnlatjJca^qf* 

Vo^*. w 












' </ T/lnjM" 

Menlo Park Scrapbook, Cat. 1085 

This scrapbook covers the period 1880-1889 and contains clippings relating to 
patents, patent laws, and patent litigation. Most of the clippings in the first part 
of the book are from 1880-1881 and concern patent laws in the United States and 
Great Britain. There are also miscellaneous clippings from 1881-1887 pertaining to 
electric lighting, particularly litigation in the United States and controversies 
between the Edison and Maxim interests in France. The second part of the book 
contains clippings from 1888-1889 regarding patent litigation. Among the cases 
cited are Edison v. United States Electric Lighting Company , Edison v. Gramme 
Electric Company , and Edison v. Westinghouse . There is also material relating to 
the Bates Refrigerator case, in which the U.S. Supreme Court ruled that the 
expiration of a foreign patent had no effect on the validity of a U.S. patent. This 
case served as an important precedent for establishing the validity of Edison's 
electric light patents. The spine is labeled "T. A. Edison. No. 67." The book 
contains 144 numbered pages. 

Blank pages not filmed: 1-3, 128-144. 

, cAia^. V» v \*^C V , 

'InJvJUaao.. J\W^. . \ttfCfv 


nunmod up In a ton \l 5> t\J Su'gfy^MmroSSMr 

trio light oxblbltod \*rtf\v V 1 ciuc. L;L Coudcrr, ot tllo n 


f It, and nppllod tor t»» e»ms to the»., i born’lntcrttm?nun bjTny< 

tho United States .'I '! : : uerMand ebol Has nrobnblr tx 

o artlclw exhibited 
of infringomonfc of 

rtlclos being selzod 

not begun yoaraago 

Tcntnry nlmjily nu|£« thaUU 
it ?Jrac ojjjc 

itlon will not bo fully 
irk boforo Novombor. 
0. It, Flint, tho prosl- 
Eloctrlo Light Com* I 
ho rtory, tho reporter \ 
Jo. Coudort, tho law- 
11 litigation for this J 

inoement OP the Bbu. Patent.— Judgment lias 
von nt Boston in tlio United States Circuit Court in 
) of“American Bell Telephone Company and others t\ ; 
Spencer and others.” This was a ease of alleged in-! 
»ent of two patents granted to Alexander Graham' 
The defendants admitted that they had infringed] 
alid claims of the second patent, hut the plaintiffs) 
ven them no evidence of such infringement. They 
entirely upon the fourth claim of the first patent, 
is much.more comprehensive in its scope. This claim 
at the defendants were using a method and apparatus; 
.nsmitting vocal sounds which resembled those of tho 
iff in producing electrical undulations, copied from thoj 
ions of a diaphragm, ami sending them along a wire to! 
lar receiver at the other end. Tho Court decided that 
ecifio method of producing the electrical undulations 
fferent. It was made on the principle of themicrc- 1 
which had been very much improved since the date! 
first Bell patent. The judge said:—“Jf the Belli 
i were for a mere arrangement or combination of old! 
1 to produce a somewhat bolder result in a known art, 
o doubt, a person who substituted a new element not ' 
nt the date of the patent might escape the charge of*, 
ement. But Bell discovered a new art, that, of traus- 
; speech hv electricity, and has a right to hold (ho 
st claim for it which can be permitted in any case— , 
the abstract right of sending sounds by telegraph 



, A Major. Eaton, of tho Edison Company, ro- 

Uuril. 1870 V' 

Tho prloo was unaffected, s: 
jeayin^ It was uffected. Tt 

}Mr! oT^u^pat^teXwM^not'ujM— ! 

(oofual price paid for nearly ererr nhare tranafcrreU that 
■ammer, tho price kept at 

Is of the otUco for the same period were $05,417 im 
i of those for the corresponding nine months of 1980.; 
pport recommends a considerable increase in Dio exam* 
corps nml the clerical force of lhe otllce, nnd the fob 
5 appropriations: $50,000 to carry out the abridgment. 
Icnts and (he publication or 10,000 volumes of the 
$15,000 for reproducing burned and exhausted draw j 
$10,000 for photo lUhogrnphtpg drawings; and $0,0J0. 
ipldo tho Otfcial Ornette for Dm> |ir^imi. vw ^ 

j TIi03. A. Eillaon, of Now York, wn>t 
/granted twenty-three 'different patents 
during the weok ending October 18th. 
us follows: CarhoHirer, electric engine 
governor, oleetrlo light system, manu¬ 
facturing carbons lor electric lights, 
current regulator for dynnmo oloctrlo 
miiphinos, olectric motor, utilizing elec¬ 
tricity ns a motive power, electro mmr. 

— Sspt. 10 , 1881 . 


m.-l, u il ', U tl “Bnliwt liim.' iil. 

tor of thi" 1 U0<1 \‘ e h 1,10 "H 

St: in S ®ksj 

/tIio EdItoa_Bltstrlo Light compin' 
. hualwaya claimed that It? alono-htdih 
HU oontrol of the iocaadetcen^ Ughl 
/id that by-;and-by It iroold .^op' dow: 
on everyone whir uied'any 'each lighl 
But a declelon Jont rendered aaya lt cut 
do ao, and peoplo.ylll'ha glad Vo'haaf l 

r 8o8irrlflffa®f' ^Vlmt a Cleveland 

1 7 y y" 

WsorTO^BFmm Seedisonp 

Wcstinghonso Beat Him a Few Days •*““* *"3^™ 

in Applying for a Patent ■ • united states elkcti 

• ■.■—^—_■■■•.:■'.■■■■■• . , UIINK IT A onBA! 

0lY A mdmtpib main conductor, ; nm j™ 

loir a Break In an Electric Main Boca .° v fJ 11,0 ''eoiaion fa 
Not Jlesalt In Darltnoaa, "morie^Sn" ^7 Pln) 


7V .^.y 


EpiSo ^n^g i^ 


«^5*r EL130Tni ° I,I0nT WBK “> not ImoH™"^M*""**"»«! tor thf jXEhi? 

noon ^nr°th^ffciiion' l fo I flio 0 Bapr«ino < ^onrMn*|h 1 o j Safo^ThlX ^‘ t( 'J ro, j 1] “ o'^Tt! 

aoPi,BJ PBILAItT. 1. 

r : .WILL DAlfKNE88 PREVa^S 


• ‘-'•""Hm «wJt5vSe end rt’SreWa 

rm ox is per-W»vb«ca patented In Otaiflda'on*thnr^mi 

Kvnstin giious o anfrEdiflOfl are 
: .vgj|io to'fittnpoiiuSRr ” 


|'A Case Boforo the U ^Ci^Courl 
3 . .mil to Decided Saturday 


v<Jy t i4 ' 


■WistltiBhonsa ami qriinnnJ nln Bands 
• . ' In a Big Electric Salt 



The a Westlnghocse-Edlson Casa Undo* 
Consideration—Opinions Emm ' 

7»ww£5./m (7 

s ii(BMs g^ 1)<, . S3Bgwsggg1G!SS^!^ t ' , 5t^^£52?^K^fe£-’S».'gisg Bjas^B ' «Bia^ Sj 

jlmmSSmB$ illM . 1&t W 1 flightingP»tent«,and tia'-'lnmiliiTbl^d':IsiSS?HowSafEX®;Ediaon’.jMftimgajr; 




.. K®Sr tompany would neither local,-o that Sawyer and Mann, two Now York alas- th.t.soubl. k ing<U. Obrou.Ab. jU'nlin. 
i fn'orniako anypropohltiotv looking towuriltrlclftnBjVfereentltleil to priority of lnvcntion litoc4Ufe th# _ j£ to a patent covering vegetable 
IknttcouaoliaaUon wi»r:tao.WooUnglionaa^.^n ttta i or an Infringementof ^JJ'^iSr'Thnmon hobbwaiwlattar Urn coraplafn. 

^HmohB^onrosontod ln° mS’carammMVO befomJudge Bradley has been Institute d.Jb? 0 i“Jj%o h n '^a'i!i“5Sao°r>.° I,U ,cs ' ubl “ . - 
■fnsgk nothing of unv man or corporation;,The great Westtnphouse Eleotrlo company, l'OOn nuT ikoenious. 

'TfiVo command oil unlimited amount which baa »1S,000,000 Invested In eleotrlo Mr EJmund Wetmoro, representing thoi 
/for. inonoy, wo havo ; men machinery, manufacturing eetabllahmontajdalnUtr., made tbo doling argument. Ho' 
7iorpusbomIonorrry-, nadlwforBpnlusv»o onlleleclrlo lighting patenta, has, tbrongh opened by elating that, oerlng to tbo great 

: la uslog the Edison lamp. for- nnlg~-n^nUon fl,. l.- »lio»e lt. A lga« dsai 
/ P‘) r80 ? a lnfringement of tbo Sawyer-Mauu i fff 1 J“XoMbSSmVStidSJimi"ettl5 

I «. ,«■? W Mlttogto. 

! ^dSaoSkfordttmik%. BUllS * roatruIlx jo I thetacandoscent system 1 of lighting as ! SrSfiS?‘ M^lSSSy®!hod’ ?i»kM*iSjffiS 
| MtU o a fo c^j^^l^yoa|») -im eiUiof*«&de^ I ^ BeB telephone company ha^ otthetolo-. ^™n^wWdi w.7m Ju.Um to^SS^uS > 

this caso*to “rofrald curious fact that tbo Edison oompaayownafgH"^g* “|3 °SSS1°L°Im ftSl: 

■ uffiSiSIv WnS„„„, ril i‘, or tMultsorttbo Sawyer-Mann A patents lu EngUndwlaed e“ mllllineor dollaS,‘rl,o mSu ralto 

.tho Court. Tbo otlior rido have'-dopol®* 1 ® 111 '® 0 drive out almost all competition la <J^Jer thaa'held'n m 100™°*°^ °® 
L™!?* 0 " 0 ™™ .In*, tho olQco -bt-ttiol tries. The trial before Judgo BradtaywUT nJuM^Suin lK“nt. b M,JrtMnd*tK? 
lSSu^S,rS."?S!!l!!!S m n i l d ;f U ?°! ,; a be long and hotly contested, aod dually, no! 5?" b “**i*“*« . '•'“HH'l'' «"* were not 
fcojmqtobo^Snmld^l&Spfilp|S£oJ *».“"'J* 1 t° the!United Sf.tes:u.o^ebamtoJl'StWJl “g 

lS«ld:“ uimV™'? kno^'Umt ,, " pP ^ , ° dC °° f ' jrh ^^^^ ?bo A .'S«,l?si r 

^''invo 1 ;boon cvroriiS^ I H”“"^L**>“«ta«®aj*Ukelytobaacoimolldn-l ri „ 8 "^ 

jP?£Z^uSSMS7 a £« I partlS^ >at ^'^JraVtako/onTnola'rnpe^ent'on^by^nnyfirm' 

■ ,CaM ^j|l§i|^flQEICEIlEDEIRST| 

&Sf?£S it- 1110 Real Point Which Lawyers' Say 

JZyjn, >" "»>' is aT Issne in tho Edison Case. jf|T?S ,b Hri”|«^:sH 

\ gra “'vinulg'S JMTBfiESTISG ARGUMENTS MADE. b ""l SiSTZ. S'2 

: —t m^lSSM&a&SSU&gS&tSl 

A Very Little Dog Which Cost Its Owner 

<a„,Xy.»nyddi/»? * ■ si -V i=ss s« . 


fipSS^^K^I iFSErSSS! 


I /f?«What 4 f yottvTrln your buiW":. •. 
r Syou may-bo certain i 

• l^bor^and from tho day U t*Uttt*°thcl r ^ 


» bltSibiiri; li.iiuiS®«anV lltlgntlbn. 'If ij” “ ornln K Mr - -dm"> Broadnax took | >5® » l _ > 

r’.V S 

f tlonlly free to all raKiorfiiiM tits uso of In- “•» * bla “ ln »' I JuJ 8«* »Ured tilth in" 

i,cottcted by H ^“•»?«.iiSii*». s?;^s,"bs • 

I .. .^*«?UwaVn Mam^WS.^ne'deecribod^ tbo I 

I - • *S r i«gM : 

1 jOtijhdtijL., (S-U/n^t,(fct/' 

Can ton To.i;Usr;CAnyt„in R & 

EiaaflS-S BXPEIiUI&TSVsTw^>* "“«p n "’*y"w.' , r:iro , ;!p u | 

' -— ' ?l'«rw?e l toTni!; t tbiVoetM5 1 ?, r .f r r “tSsriS/ ' l '"“ ' J 1 , ° " I" be boUy contbeted by liil 

ahodhents wu^oonoldde a»*r 

prujip i-ourt win bavo In ^tdllo'ltf l ^ J 

i'St b ^“ 

Ed. on evidently grow. In intoroet from dny carl,0 ” l ‘®'‘ »“»" r - .1 tkLs.u.^B, O 

today. Tliat blnolc hole called tho United If 

Stale# Circuit Court mom ... / *DE EDISON PATENT tdrii 

Slate# Cir It oT°'l 10 0 ‘ h ° U 

of°tlio Allegheny ” Ur.tat bui 

lfAjiurJU*Aj^J,^ } JhaU. 

I 2 J 7 “ ? olh Side# Conduded., 
Tbo One. ten with tl,o Judge#. | 

iSe™o t ll,htin!l Il 5„“ l “d' >V ““ n ®' 

uiun e incoe pretlomluntcd. It le euppoicd' m-y, mi. wtoueeclodrlo light rail tree concluded otniE. matter In whnt llghtl_ _ Ki'i'. fi“'' r'dcrtar. amoe BnSmxb*. 

you looked nt tbo oaeo you eaw marked nil# _ A ,„° nEAT LE0A1 - BATTLE. ' fcdSnmndtS^t°?h. 1 ‘J ' Vc ’" ng 5° use * 1 ' lA 
over it this figure hod sorao effect toil -One eftba greatest, If not the greatest, |aJn^ wo, tho . th n? . In aU 

draw, ' Tho decision .of tho case will tran*.n * 0f?n * w * , ^ c * 1 l ,,,VQ taken place In this j was tbciw. Tbo Sawyor-iuoa "uniD wu mV 

rc p™ oau !rT? commcn ^ i«u»o| litL Q oS»^rw fl rfl f rt^^^ 

; pT-, lk V^ t ^ r to 4 BSSsn^KTSA 

‘Til .dive 1 el fr li fi'.'K !‘”" *'“7 EUleon- we. 'M. m . a „ , h ,. CIosIng ammnt fcr 

M? 0 n2.i52 r K n » 0 ? Mk,,,R 7“M«I»ns. When® tbo li»yt*utor t of the incandescent lamp that Wxo Edison side. Uo g&va a bWorr ofdMtrlS- 
M r a°!tian VC of'luto^orato ^ab^tv^tnlcht 11069 1119 name. But* if scorns thut In: iy > “ 1 ‘ 1 that Edition, In November, 18TO, In* 

bavo fared hotter aud had moro succowt, Juugo 1J *5 the Intent office decided that Sawyer & b ? l lr ' 1 i k ‘ s fl t»roi» conductor. • Tho 

argsa: SwCri*"^™,^^ 

Sundarr h \b l o r,! vblllfne* t coun«d "ovIdintTr "" ,llIrln S' ,, ' a T , t ° r Sntvyer* Mann’s palcnl u,^clcnlmr 1 eri'” 0 ^ n' W “““« ll0u w. raede 
hadn't got ontu tbo "epoakajaslei." Tboro le Ibat die suit lias boon brought. bad boon crod'imd ,1 w|tb 8 mo tl InlVnMnn li ! 1 io a 

ouo“on U tbo°e'dYot'tboXmn“o r ”V."DVon° ' 1 ' l '° pre,c " 1 '"'errst Involved Is $2.-,,0»).- omlro IncaaodcKamt eledrlo system, rTbondt 
nelly, Elcj. Ilo le aeeoelated rvlV Mr.'Hieb«°rd POO. niul tbo stnkc Is tbo ownership of Ihu; ”« be‘“>« 10 blin._ Ho nrgued ibellbo: 

»" "*• mijo t, ‘ o “ r ‘ om "” , *” 11,0 “ (tor - r m 1 isis ■ 

Menlo Park lu 1877 and baa continued Juit os It ^ 

Mr!*Lowroy k» voeonorel^ilBtoryof tb 
iou» ^ ox l’Y* 11101 'I* yioui^idoiftUla’inen” « 
lSn dltcrod Itod tbo fact *that Kiliaon hai 

ono of lko w ® Ht Us tMt 

ousc| Jr., ami bN frlcmlaj aSSmtef!beir btlo^anU^o'cMc^^ 

... ^LmuAr 

1 ^ »>*h 

Companies. Tbo rleetrle' HghUng oulcr-,—... 

■ luVirruS 1 ^: the electric ligut suit. 

. tbet ho muet bavo a perfect vaonuro to produce Companies. Tbo elsMrlo HghUng oulcr- —- - - - r&v- 

s^s^ssiss^'isffrs'ys m electric light sdit. 

?be°lfamboo ll0 |ibir 0 The” speakor^sabr tbero E'eotrlo Light Cumpany, wbloh owns-.tbo . - 1 - ! 

would bo no oloctrio llebL tut for tlm wondor- Maxim patents ami tho patouli of Edward „ P j„ ,l. w „, 

Xulgeulu.ofSdlaon. Tliodlsooveryoftbouaa ^ Weston, which bus just baen urauted by UIoao of ‘“ 0 Ar £ nmMl13 m tto We,t ^ 
JfcoV no usffu^making^ tlio ilno“fibtoua jllgi.'tho palont oDIco. ' . inebouse-Eaijpn Odso. 

iSfSSooMMd 1 'that bSmbS u WMnMdod'bo'olint 1 “ Tl ' 19 l’“ lu " 1 oC Weston’s covers llio mo«t | --- 

fto Japan and China ta mjif®:^ ,® 1 ,"'”^5 j Mature used In nil of Ibo dynam,.. Mr. Broadnax Roviow. tbo History of 

- b! bV »>r^dliof. w«rr^ ‘ . „ ”> «>. Sawyor-Manu Invontlom., 

Wo^n-b 1 . ' fuZSiS^i™ £!JK Tho,r F “ uurM ^ Buoo °- 

argU ™”t,LVoov”r°V*T°nnvritmiiiii« 1 '. IHMutl .of ultoriintlvo sections of megnello SOB—Mr. Edison n Idoa. 

: aiiKHTmo E ■ , •’ ’'und Insubitlng nulcrlsl In com'blnatldn with ■ - : 

B g^jj^ l g“ ^Js 1 £!!£' Ih ounduidnrs, and wound thereupon.” 8iK* T..urmm«, 

was ell u °at entirely teobmcab Ho bad a largo; 'This apparatus lias been used nild'ls'liolng j t i 1 Fl ™ 0 ™ R ° 1 ‘| ^'“ 3r 

v . __:_ ^?P u a c0 . iu apoke for tha oomplalnaota, and Mr. Thuy 

^Pitthbor o. May 23.—Tho nrgumimU^n 

ran foreign patent iMlratoutnmoui 

Icon ono for tho same invention |' 

irvivo it Judgo Wallace lioldj 
atbht statute tiio United States 
'■woroCinbfcrlnfrlngore. Unless! 

, tlmt decision -win probably dl»-j 

vo | Lta!;«Se oilsw, ,ElecSj 
t 1 " “‘'Vr'' V 'VSr 1 ! u i nli'TaViif 

. combination in ordiTtntiKf.lfn»^iiii£ v-.°j 


.inventions of Maxim and : 
: Edison Discussed, 

ms If s tjike~1 

l’Eai^ H '-' H ' GIANTS ' 8BEX I 

j.Vanderbilt and Sunday.Freight Trains 
on tbe Central Road. 

Array of Legal Talont fty 
| ArgnoinEayorof Edisog 


His Personal Attornoy Tolls How iho- 
! Inventor'Sticks at Work, , 



flJln Ot/&> A'C^.Orx/. 

2.5, d$y 


WcsiinghonBo and Kdlsmi Locked 
floras Yesterday for a Week. 



The eight scrapbooks in this series cover the years 1880-1886. Four of the 
scrapbooks contain clippings from newspapers and technical journals and relate to 
the business and technical aspects of electric lighting and the electric railroad. 
Also included is one scrapbook containing correspondence and other documents 
pertaining to Edison's work on electric railroads, particularly the experimental 
railroad built at Menlo Park. Another scrapbook consists of canvassing reports 
from Alfred O. Tate to Charles Batchelor regarding central stations in Michigan 
and Canada. Finally, there are two scrapbooks containing messages transmitted at 
the Paris Electrical Exhibition of 1881 by an autographic telegraph invented by 
Edison and Patrick Kenny. All of the books have been filmed except for the two 
books of telegraph messages. 

The following scrapbooks have been filmed: 

1. Cat. 2174 Electric railroad correspondence (1880-1883) 

2. Cat. 1135 Clippings (1881) 

3. Cat. 1139 Clippings (1882-1884) 

4. Uncataloged Canvassing Reports (1884) 

5. Cat. 1138 Clippings (1885) 

6. Cat. 1140 Clippings (1885-1886) 

The following scrapbooks have not been filmed: 

1. E-5478-1 Telegraph messages (1881) 

2. E-2546 Telegraph messages (1881-1882) 

A Note on the Filming of the Miscellaneous Scrapbooks 

Although each scrapbook page is represented on the microfilm, the contents 
of the scrapbooks have not always been filmed in their entirety. Many scrapbooks 
contain oversize dippings that cannot be completely unfolded without obscuring 
other clippings. Moreover, it is not uncommon for many successive pages in a 
technical journal to be pasted onto a single scrapbook page. To have filmed the 
clippings in their entirety would have required several additional reels of 

Each scrapbook page has been filmed at least once, in such a manner as to 
convey the greatest amount of bibliographic and substantive information about the 
clippings on the page. Substantive clippings that are directly concerned with 
Edison and his inventive or business activities have been filmed in their entirety. 

Scrapbook, Cat. 2174 

This scrapbook covers the period April 1880-November 1883 and contains 
correspondence and other documents relating to Edison's work on electric railroads. 
Most of the material pertains to the experimental railroad constructed at Menlo 
Park in 1880. Included are equipment specifications; cost accounts; progress 
reports from Charles T. Hughes, the engineer in charge of the railroad; and an 
agreement between Edison and Henry Villard for the construction of a longer, 
improved railway at Menlo Park. There are also letters concerning proposed 
electric railway systems in the United States and elsewhere; agreements pertaining 
to the rights to Edison's railway patents; a report by Sherburne B. Eaton 
summarizing ownership of European rights to various railway inventions; and 
newspaper and journal articles relating to the electric railways of Edison and 
Stephen Dudley Field. 

The material in this book was removed from Edison's files and assembled in 
scrapbook form by William 3. Hammer in the spring of 1898. The documents were 
used by the General Electric Board of Patent Control in patent litigation and were 
returned to Edison on May 9, 1902. The scrapbook was disbound prior to 
microfilming. The material was filmed as arranged by Hammer. 

Related material can be found in the "Railroad - Electric" folders in the 
Document File Series. 

’ various papers, contracts, 

respon&anb eVeno^-if^l. oations and estimates jTQt railroad » 
paving.dirfee^oK^nflireot bearing -upon Mr. Edison'h eiboitr 
’--ads a^toriid^^ic.^ih- X8S~ & 1081 and 1832 a 1883, as "roll 
;a?.di^;pKosx>^^jrjSC'4natalla'i;ion3 on the northern Pacific 
8B^ba3B^v?-tS;6.a'»«n-»lnlanaw/ Pennsylvania' IU m. , 
and. elsewhere. II contains also 

. ^-Sdlsoh-Biedernann contract; Eloetr 

t 'way\oo. u- one, jp. .a. agrjsosaont, etc.^eto. These../papers were 
^’William J, ^«ua^r^fydnl'?»r. Edison's private archives at' the 
^laboratory in. Ispjsing r pf 1398 Dy oor isSion of. iir. Edison for 
{$ <theiBoard, ol Patent Control in too 3 Lumen's case, and return 
*, 1 Y/illiam J. ’ ajiraeryto' Hr— T&lison's laboratory.-'on. M«V 9T' 


l.oa of 

as data 
R. R., 

the Edi- ■ 
ic 1 Jail- 
taken by 
Id is or* 
use of 
id by . 
. 902 . 


f /; Cat. 2i 

Dili's binder contains various.-' papers' contracts, 'files of 
correspondence, upocificationa and estimates for railroad, raat$i^&, 
bavins" •=• direct or .’indirect bearing'upon Mr. Edison!a ei&dt-iic' rill- .: 
roads at Menlo Paris in 1330 & 1881 and 1882 'Si 1883, as well as data 
re ardins prospective. installations on the Northern Pacific R. R., 
Manhattan Hevatod R. 5., Staten Island, Pennsylvania R. H., Svits- 
L,f ; : erlaiid, So. .baerioa, Cuba, and elsewhere. It contains also the Edi- 
son-ViHard contract; tie Edison-Biedermann contract; Electric Rail¬ 
way Co. of tile U. S.'agreement, eto.-eto. Sliese papers were taken by 
i‘ •William J. Kaiiimer from Mr. Edison’s private archives at' the Edison 
; laboratory in spring of 1808 by permission of Mr. Edison for use of 
the Board of Patent Control in the Siercen's case, and returned by 
! William J. '-:arx.ier to Mr. .Edison's laboratory, on 10os * 

¥ t c- 


.'/ - /__ . / j&S . 


y/^CoyS^G- zn^z#-tyy~ 


flu* fir- ^U. t M^. 

;w/**•*> f_- 

s/4 sf'+T*? if a /ZTZt- ^ 

r^ '*t- il2z±^~ *-■ ^ t^.j 

■/to <^^~- su. ‘¥S^jr// C~-~ i 

-*C*^ 4- ^ ^ ^t._ : 

-to -<~«**^"1 ; 

'rr&ccu. *^ r rtu—i ^ f>. ’/ r ^ c ^ \ 

. oau^u^^^' l£w ' A ; 

^ »W -^4Un*U, ^ ^ __^ /M /U*^, 

H.P a*^iU^<- 0 -a- /'f^' '"'' v, 


. - • - ^_ ( 2 ^ / 2_j9-t-3 -ftn ^ 

X* tr r4~^~ ^ 

• / V 4 /f<Xwv^^. ftiU-c, /- 7 ^ F>) 

/ 4-^ja 

Q^aIx^ tfLus(p*^yi*j^^ 

U^—a/j/^ /(a^ /^' e " 

The Edgar Thomson Steel Company, Limited. 

Buanoh Office, No. 48 Fifth Avenue, 

Pittsburg h, . >u w»t. 3r d » 1.8 80 , ; . 

T, A, Edison, Esq., 

Menlo Park, N. J. 

Dear fair- favor of gIst . „i t ., received* The rails of 

section, required by you, n.i*ht be quoted at about *75.00 as the 
present market price. 

Yours truly. 


c- Cly £ 

4 CfifD Ps. 4 siS^-. / 7 yy. 

J£ oj[£ ~£*. ^-^-<-a- 

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A-± ■<&£■ 

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Pine and Hardwood Lumber, 
35 Broadway, 

,y ~y/ / 

y^i <ui " ,d2L^. .. 

^ .tX) <f)^~ . 


. ..£t^~-. <Z4-J^XdXt~Cs>^.. l & / ?(J^X~ -.^. /-?TC4~<^r 
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04 ^ 

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(£77ul (jL^otZe-rbS 
• t&cCiV d)*<- 

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ff7l£y •-)/£/ 1^'^W^I^‘f' /H-Ol^xy GC*S fiHWTK CT-?7*^z-Y~ -&J 

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New York Herald, May 15, 1880. 


Experiment with the Electro-Locomotive on the Menlo Park Railway--an 
Accident prevents a satisfactory test being made. 

For sometime past Edison has been engaged in perfecting an 
electro-motor to *kH be used in countries where the traffic would 
be insufficient to pay the interest upojteven a narrow gunge road 
operated under the present system. The engine consists a of a simple 
four wheel truck on which a dynamo machine is placed. An armature 
revolves just as in obtaining the electricity for the lights, but a 
system of gearing is uaed so that the armature may work perfectly 
independent!; - of the car wheels, enabling the operator to use as much 
power as he desires. The line of railroad at Menlo Park is a little 
over a half a mile in length, and .has some vary sharp curves and steep 
grades. The system on which it works is as follows:- The electric 
engine receives its motive power from a large steam engine at the 
station, but before the power is used it is turned into electricity, 
which, passing through the rails, supplies electricity enough to run 
the motor or draught engine. When the road would be laid for ^.practi¬ 
cal purposes there would he a station every ten miles from which 
electricity would be supplied for five miles on either side. The 
power of the machine at each station would be sufficient to run sever¬ 
al trains at the same time on the section. Mr. Edison claims that 
all the movements of trains on each ten-mile section are controlled 
absolutely, and that crossings and switchings can also be done auto¬ 
matically. It is intended that each train will carry 30 tons of 
freight, or from 200 to 300 passengers. The cars, Mr. Edison says, 
will have the same likRHKSsxxsxskKBKX lightness as street cars, hence 
the dead weight will be small, so that more freight can be carried. 

The average speed of the freight trains will be about 12 miles an 
hour, and passenger trains 20 miles. The motor or engine used in 
drawing the cars weighs aboiit two and one half tons. The road can be 
laid in mining or agricultural districts wherever a wagon can pass, 
as little or no graditig-nied be done. The traction necessary to ascend 
steep grades is produced by means of magnetic attraction, the powers 
of which can be so exerted that the traction of the two and a half 
ton motor can be made ecpial to that of a heavy locomotive. The cost 
of the "plant" for the most broken country would be about $5000 per 
mile, and, as it is of a two and one half foot guage, the inventor 
says it can be stored away quite easily. Mr. Edison was led to the 
discovery by the question of carting tailings from many sections 
of the placer diggings in California to the place where his sheds 
will be located. Of the experiment very little can be said. The 
engine was brought on the track after great difficulty, and everything 
being ready the circuit was made. As the motor began to move nearly 
every one of the workmen got on it and away they went slowly. When 
the down grade was reached the track v/as found to be very dirty, being 
dovered in some places by sand. The man who had charge of the fric¬ 
tion gearing pressed on the lever too hard, and the large cast-iron 
wheel burst in four sections, stopping any further movement of the 
motor. The power of the electric current must have been very great, 
as the reporter saw when the electric spark burned everything in the 
shape of rust or dirt off the track. It was quite evident that the 
crowding of the men on the motor caused the accident and put an end to 
a very interesting experiment. 


A gentleman who is engaged in the manufacture of buoys for 
the government called on Edison a short time ago and gave him an idea 
of the "whistling buoy", now in use. He said the buoys weigh about 
15 tons and that their plunging, even during calm weather generates 
nearly 3 horse-power. Edison took the hint and had a small dynamo ma¬ 
chine made for the purpose of putting it into the buoy and utilizing the 
3 horse-power of energy. ;.He'»nas guaranteed that , he, y/ill-.giyeya l 'gas' 1 light for'E.'yeargV-vahdi.y.'f.-necessary .will increase.', the-light;. As- 

■ » iu . if 

^ censfiil .be .valuable*; 

Scientific American, June 6, 1880. 


But for the chronic aptitude of this generation never 
to v/onder at anything, we might expect to witness expressions of 
surprise as it bee ernes known that we are to be whisked through 
the country at the rate of .thirty, forty or :fifty miles an hour 
by an agBnt invisible and unknown save by its effects; but the 
moment electricity is suggested as a motive power for railways, 
the never-to-be-surprised public say "Why not?" Nevertheless the 
practical application of the electric current to this purpose 
seems never to have had a prospect of success before the experi¬ 
ments of Dr. Siemens, in Berlin, in 1879, and the present extend¬ 
ed experiments of Hr. Edison. It is a subject fraught with 
difficulties, and while it has always offered a seemingly promising 
field for inventors, the expense attending experiments of this 
class has been a most effecttal barrier to progress. 

Mr. Edison, more fortunate in this respect than many 
of our experimenters, has not been hampered by monetary difficul¬ 
ties, and having had anple means for carrying out his ideas in 
practice, he has been enabled to develop his inventions more rapid¬ 
ly perhaps than ary other man living. 

His new electric railway at Menlo .Park is built over 
natural ground, with little or no grading, and with no regard for 
curves or trades. It is at present something over half a mile 
long, and is soon to be ext aided to form a mile circle. The 
present rolling stock consists of one electric locomotive and one 
open car. The general appearance of the railway and its equip¬ 
ments will be seen in our engraving. The motor is precisely like 
one of Hr. Edison’s electrical generators, figured and described 
in our columns sanetime since, and the motive power is supplied 
by his stationary engine, the-power being converted into electrical 
energy by a single generator. 

The current thus created is conveyed to the track by 
two copper wires, one wire being connected with each rail. The 
armature of the locomotive makes four revolutions to one of the 
drive wheels. The machine is managed about like a steam locomo¬ 
tive, and it pushes ahead with wonderful energy. 

By invitation of Mr. Edison, representatives of this 
journal were present at a recent trial of this novel motor, and 
had the pleasure of riding, with sane twelve or fourteen other 
passengers, at a break-neck rate up and down-tlie grades, around 
sharp curves, over humps and bumps, at the rate of 25 to 30 miles 
an hour'. Our experiencesjsaysxwrwere sufficient to enable us to 
see the desirableness of a little smoother road, and to convince 
us that there was no lack of power in the machine. Mr. Edison 
says that he realizes in the locomotive 70 r . per cent, of the. power 
applied to fee generator. He will:, soon add four more cars, and 
apply improvements|which he has in contemplation. 

This grand experiment is designed to test the applica- 

bility of the electric current to this purpose, and to develop a 
railway system suitable for plantations, lai’ge farms, and for min¬ 
ing districts, and perhaps it is not entirely visionary to expect 
.that our streets and elevated railways may at no very distance 
day be successfully operated by electricity. 

When the motor is complete and the road thoroughly 
equipped, we hope to be able to present our readers'with further 

New York Herald, July 23rd, 1880. 
(Astor Library) 

Electric Locomotion 
Why not apply it to New York's 
Elevated Railroads. 

A fresh air trip at Menlo Park 
Advantages for the Publicr Economy 
for the stockholders. 

(This article 1 l/2 columns in length) 


"Edison’s belief was that he had found a motor which could 
ascend or descend any grade short of the perpendicular, which could be 
operated with ease and certainty and be always under perfect control. 
What wonderful devices he had for gripping the truck and so on were 
briefly explained." 

"What do you have so many curves for" 

"Edison laughed as he answered "For the skeptics; you 
couldn't convince them that she could turn a curve unless they saw her 
going round one, I am skeptical myself, I had to be convinced before 
anybody else." 

Edison made explanations of his electric brake, which he had 
not had time to apply to the locomotive yet and more explanations about 
the way in which he would get over grades that would frighten an ordi¬ 
nary railroader. 

"Qff we went at about thirty miles an hour, and in a couple 
of minutes we had travelled the half mile and return. Edison was 
asked to make certain calculations; the writer undertook to collect 
some facts, and a meeting for a further talk was agreed upon. 


The questions are 

First .—Admitting the desirability of a locomotiva with no 
smoke, gas or steam and so much less noisy, can Edison’s Electric 
Engine be applied to the Elevated Railways of New York? 

Edison’s answer was;—The elevated railroads present the. 
best possible conditions for its use, an almost level roadbed and per¬ 
fect insulation; minimum of cost in application 

Second.—Can it be applied and used economically? 

EEFlson's answer was Over S50&000 a year can be saved to the 
Company by its use . 

These strong statements were worth examination for details. 
Mr. Edison was asked to sketch the manner in which the electric.engine 
could be applied to the elevated road, said he 

"To operate the four roads through the entire length of Man¬ 
hattan Island, would need about six electric stations. These need not 

be anywhere near the lines, so that they could be selected with a 
view to low rentnand water facilities- I mean driven wells. Each sta 
tion would furnish its quota of power to the four lines making it 
greater or less according to the traffic. It would not need a copper 
wire thicker than three quarters of an inch to convey sufficient 
power to the tracks. Place the electric locomotive on the trackB 
give all the cars instead of a portion of them as at present "paper 
model" covers to their wheels and the thing is done. The wire con¬ 
nections over frogs and switches would not take a couple of men more 
than a couple of days to perfect." 

"Could you utilize the present engines?" 

"No. They could be sold. Electric locomotives could be 
furnished at the very least for what the present engines would bring 
if sold-steam engines for electric engines. Furthermore as to the 
manner of applying it, the electric motors could ne gradually substi¬ 
tuted for the steam motors." 

"But the cost of making?" 

Mr. Edison.—I will give you a sum to work out. The steam 
locomotive burns anthracite coal at $4.20 per ton, the stationary 
engines would burn dust coal from $1.50 to $1.75 per ton. It requires 
ten pounds of anthracite coal as burned in the locomotive to get one 
horse power per hour. We can get with the new Babcock and Wilcox 
furnace one horse power from 2 1/2 lbs of coal or power of 
electricity from 3 l/g lbs of coal, so much on coal alone; but handling 
the coal would cost much less because it would not have to be hoisted 
to the tracks." 

• "Would there be a saving in labor?" 

Mr. Edison.—"Ill give you another sum. They employ an 
engineer and fireman on each locomotive. One man is all I use on the 
electric locomotive. It would not need the same skilled labor, for 
there is utter simplicity in everything about it and I have no douht 
men of a higher order of intelligence could be had for the wages paid 
to firemen alcr.e, strike off the engineers altogether, giving in 
their place twelve engineers and twelve firemen for the six stations. 

These sums worked out upon thoroughly reliable information 
give the following figures:- 

"There are 160 engines in use on the elevated railroads, they 
work from 12 to 13 hours each; they are about 30 horse power xxk each; 
4800 horse power is therefore required for 13 hours daily. This for 
the electric stationary engines, according to Mr. Edison's figures would 
consume 109 tons daily or 3700 tons monthly at 1.75 per ton, $5722. 

The twelve station engineers at $3. per day, would cost $1080 monthly; 
the twelve station firemen at $2.25, would cost $810 monthly. The 
v/ages of 230 electrical engineers would be 15,000. 

These sums would yield the following comparisons:- 

Elevated Road one month the year for motive power— 


Engineers-- 25,734 

Firemen- 15,02 5_ 


Electric system one month 

Coal-§ 5,722 

Engineers & firemen at station- 1,890 

Electric engineers-.-• ?- 1 5,000 


Saving per month by the Electric system- §53,990 

Saving per annum-.-647,880 

Bcbm these simple but frequent calculations the reader 
may be invited to return to the Interview for a few additional state¬ 
ments of Mr;.Edison. 

The electric engines will cost §3,000.each; the cost of 
the present locomotives is §7000 each. I would add this that on ac¬ 
count of the simplicity of parts, fewer, repairs v/ould be needed. 

The materials of an electric engine past its service, if broken up, 
would fetch l/3 its cost price because its solid iron core and copper 
wire form the greater part of it. Another thing, and a very important- 
ant too, is that the weight of the electric locomotive being less than 
half that of the steam locomotive, and the power being applied contin¬ 
uously, not by reciprocation, it sways the structure less, causes less 
wear and tear in the same and lessens the noise. No water, smoke, 
cinders, oil and so on can annoy passengors on the train or streets. 
There is no danger of fire. The use of electric brakes as powerful 
as the air brake insures the same degree of safety. Open cars can be 
used in summer. The current strength from the stations can be regu¬ 
lated so that no train can ever go beyond a certain rate of speed."- 

When, Mr. Edison, can you exhibit all these points in practi¬ 
cal operation on a larger scale? 

Mr. Edison:-“In about ten v/eeks I shall operate eight miles 
of line on the Camden and Amboy road; the engines now building for me 
cannot be ready before then." 

!!Why dont you try .it on the New York elevated roads?" 

Mr. Edison (smiling)-'"I have not been asked." 

Why is he not asked?• If he can save so much money to the 
Company it should scent out the opportunity to add to its dividends. 

The question hov/ever is put because more than the stockholders have an 
interest in such.a way of escape from the undeniable nuisances that 
arise under the present system. 

New York Herald, July 24, 1880. 


Edison's Invention Finds Favor Among "I" Road Officials. 


The Engine Certain To Be Adopted Should it Meet All Requirements. 

The description of Edison's electric locomotive, as published 
in the Herald of yesterday, caused universal comment among all classes 
of citizens, but it was particularly interesting reading to the mana¬ 
gers of the nL" roads. The possibilities of the future, as pictured 
in the article, when the engines dashing through the streets shall 
be noiseless, dustless and smokeless, are most pleasing to the aver¬ 
age New Yorker whose head has ached with noise, whose eyes have been 
filled with dust, or whose clothes have been ruined by oil. The pic¬ 
ture was a pleasing one, too, to the executive officers of the "L" road, 
who have had to stand between a justly indignant public and stock 
dickering boards of directors Edison's statement in plain figures 
that the use of his electric engine would cause a direct saving of 
over $500,000 a year was perhaps the most pleasing portion of the 
announcement to the directors, who no doubt began to consider how they 
could overcome this last and crushing argument in favor of cheaper 
fares. But notwithstanding this general feeling of satisfaction it 
was observable that the members of the Board would say nothing of im¬ 
portance, one way or the other, about the matter. The executive offi¬ 
cers had read of the electric motor and had understood it and its im¬ 
portance in connection with such roads as theirs. In the engineers* 
department the article had been a topic of conversation and comment. 
There were So many advantages to be gained by the application of some 
other motive power than steam that anything like Edison's locomotive 
would be considered a Godsend by the engineers of the "L" roads. The 
saving in labor, coal and in the original cost of the engines have 
been summed up in the article, but there v/as another and a very impor¬ 
tant factor to be considered. In the first place the locomotives 
could be made much lighter than those now in use. The present engines 
are not only heavy, but consume a great deal of coal. The weight 
makes a considerable wear and tear on the road, and that is a matter 
of the greatest importance. The stopping and starting, unless per¬ 
formed with the utmost caution, strains the structure more than people 
have any idea of. Going around curves, too, is hard work, and the 
wear and tear of the structure is at all times, even with the stringent 
rules and the most perfect appliances in use, much greater than it 
ought be. The substitution of some other motive power for steam 
would not only be a boon to the public, but to the company as well. 


Superintendent Onderdonk, of the Western Division, was ex¬ 
tremely busy with a number of his subordinates when approached by the 
writer, but at the mention of Edison's iBKBxuakixHx electric locomotive 
his face lightened and he seemed to ika gxxxx regard the possibilities 
of its use with genuine satisfaction, 

"You have read the Herald this morning, of course?" said the 


"Oh, yes," replied Mr. Onderdonk; "I always read the Herald. 
Must have the news, you know." 

"Well, what do you think of the new locomotive?" 

"I have not seen it, and so cannot express a very positive 
opinion about it." 

"Yes, but you have read the Herald's description of it?" 

"Prom that it seems like an excellent thing." 

"And would be a good change for the "L" road?" 

"Just what we want if it will do what is claimed for it." 

^ Passing along the hall the reporter found his way to the 

office of Director Navaro. 

"Mr. Navard," said the reporter, -"The Herald published this 
morning and would like to hear your views on the-" 

"I really do not know anything about it," answered the Direc¬ 
tor, with a deprecatory wave of the hand. 

"Edison electric locomotive?" finished the reporter. 

"I really know nothing of it." 

"Well, if you found it a success would you put it on the 


"I realiCy know nothing of it," reiterated Mr. Nevaro. 

"If it was a success in every way would it not be a good . 
thing for your company?" 

"Really, you had better see Mrr-Mr.-" 

"Hains?" suggested the writer. 

"Yes, Mr. Hains. He knows all about these things," and then 
Mr. Nevaro waved himself back into his private office again. 


Col 9.B$Lj£ ins > general imanager of the Manhattan company, 
is an exceedingly,,variation from the average type of the higher "L" 
road magnates. Although very busy, he welcomed the Herald’s represent¬ 
ative cordially, and readily consented to give what information he 
could on the subject. 

"You have read the description of the new motor?" the report¬ 
er asked. 

"Yes, I read it in this morning's Herald, and I had been 
to see it before." 


"Yes, I went out to Menlo Park twice to see it. The first 
time I could not get a very good idea of the motor for various reasons, 
so I determined to have another look at it. The second time I was 
accompanied by' Mr. Guilford, and we then fully intended to make a 
test of the matter." 

"And did you not succeed?" 

"No, Mr. Edison was very closely engaged with some gentlemen 
and we could not wait, so we returned to the city." 

"Well, what do you ; think of it?" 

"I do not know what to think of it yet." 

"Then you will see it again?" 

"Yes, I intend making a thorough examination of it in every 
possible way." 

"When will you do this?" 

"Mr. Edison told me that he intended to have a 100-horse 
power engine soon with which td furnish the power." 

"That, of course, would be a better te3t." 

"Yes, much better, as if to show v/hat can be drawn. He is 
to have also from 8 to 10 miles of railroad track furnished him by 
the Pennsylvania railroad, so that the experiment can be made properly." 

"Can much power be applied?" 

"Mr. Edison says so. He claims that he can draw 30 loaded 
cars. That is a pretty good train." 


"What do you think of the system for your roads?" 

"When it is demonstrated practically that the system can be 
successfully carried out we will be only too glad to adopt it." 

"It would be peculiaiCly applicable to your roads, would it 


"Unquestionably so. There would be less swaying of the 


our benefit." e> 'P e ri 0 nced ™en, and altogether it would be.much to 

S ere f? 0 l a ? be n0 trouble in applying it?" 
stations and-but^heAbpL^f* w ® could have six or eight electric 

"No dount thlv'vm 06 r ? ad ? W P1 l00k lnt0 ifc aa Promptly?" 

3“*i K™ » “i -'*22 te’S.S 
»' “■ r-uSS^srsa^ S°ISf 
i» s-Xixjs ffirs^^ss a*ir' 

!« ™Sol*' ,e h “” a th ° > ' ou ‘' h *•** ° r «» wr 

''A thorough test means a practical test no doubt." 

S «S ,5 

s“»i. s.11**”?*! Ji t a ^” 8 'to' ?««M n s*sSL. , r;; 1 : h .- 

our- ® asy matter to make changes on so many engines as 

ours when *.hey are in such constant use." 


also un tn M hi- R ;vf te Y ar >’ f , P erinte ndent of the Eastern division, was 
read the articlef busln0ss > ba * nevertheless had found time to 

"Every railroad ij 
in reply to,a question. 

"Have you looked into it closely?" 
having seen N il" Ut 1 Wl11 - ° f °° Ur6e 1 can fona no °P inla « without 
"It would do nicely for your roads, would it not?" 

"Just the thing for us if it is all right It must hsvs 
however, a thorough and practical demonstration." h * 

"It would save much? 

"Save 50X easily." 

"And it looks well, does it not?" 

?ert_ainly does look well; but, as I said before, an 
opinion worth anytnihg cannot be expressed by a man who has not made 
a thorough examination of, it. It all depends on^s pracUcaMinj!" 

i in America is interested in it," he said 

New York Graphic, July 27, 1880. 

Page 191 contains illustrations of a trip on Mr. Edison's 
electric railroad, at Menlo Park, with a view of his locomotive and car. 
Mr. Edison thinks he has found a motor, which, when perfected, will 
be of much practical use. ^The^jrehicles are so well shown in our pic- 
J;ures as to need but little d e l^l^tlon T The"electrITl^tl^Tl^p"^les 
the motive^power is ge nerated 'in t he ^jl^Tli^Ii'rhard b?7 "ancTi^ sent 
3«n£3Hi_tracks. A line of rails laidlrtltoliS^rf^^ 
stretches away for three or four hundred yards, diiTp"pea'?iSg"round a 
sharp curve to the left. There is an ordinary truck, with a couple 
of heavy iron-backed park seats upon it, shaded with a canvas awning 
supported by iron stanchions. The visitor steps upon the improvised 
open car and takes his^seat, Edison being nearest the locomotive in 
front. Outwardly this*a rude concern, having rough pine boards, 
painted dark red, for a partial casing, and seats for two. It runs ' 
upon four wheels, through which the electric curr«nt that is sent along 
"the tracks reaches the electric motor that in turn gives motion to the 
wheels. This motor is very similar to the electric generators so often 
described in the newspaper articles on the electric light. The power 
so curiously generated is communicated to the wheels by leather bands. 
The brakes are common wooden levers operated by main strength. Briefly, 
it is an electric machine on wheels,, taking up., little space and the 
only thing that reminds one of the ordinary locomotive was a bell kept 
ringing by tugging at the string. 

Our f ac -simile of _a-Sketch-.-by..Mr. Edlson^h Wolf 0 f a ioo 

betweenPerth Amboy and Rahway will' inter- 
ost our r eaders as a wor k of art as welT^T promise"ofa^reat'medhan- 
ical triumph. .... _ 

New York Herald, August 5, 1880. 



in law y? rs ar ? the most ingenious of their profession 

in pointing our the great results which hang upon small facts it is 
claiir^hptwpp 6 them for the present any quarrel over the priority of 

! he tW0 ^ erican inventors. It is stated that Mr. Edi- 
wip?a» y6t se = ured a Patent for his electric engine while Mr. . 
Field s was issued on the 13th of last month, the specifications 
and drawings (without a model) having been filed in the regular annli- 

to state°that n Mr he Edis °? Ju i ie V , Por the present it is only necessary 
to state that Mr. Edison's electric engine was put on the track at 

dav^a tt^y****.? May l£lBt ‘ Upon the firnt trial on th e same 
nf ? M»v h M 1 hiir&t, putting an end to the experiment; toit on the 29th 
of Ma y a Herald reporter rode twice over the line of road with Edison. 

. ia S t he successor of the new motor. This antedates Mr. Field's 
application for a patent by 11 days, but the cave at referred to above 
of course antedates Edison's first efforts. -- ■ 


i«rrc S f? n Ediaon ’ 8 engine in operation, and with the draw- 

ings and specifications of Mr. Field’s electro motor in hand, it can 
two 0b vH?r Cl , at a glance that there is a great similarity between the ' 
(i, h ! ! such point of difference that one cannot by any 

f 11 J y b ? “J- Stalcen for the other. Each uses stationary genera- 
Jbpp c rni ? h u n § elect ricity to the line. The manner of applving 
■ D ??r nl8 u 8 l» by a ? ordinar y electric motor, to the wheels is very 

w 1 in r ?»,o lth ?l le 5 t ^ ere is naturally some difference in the details; 

he method of conducting the supply of electricity to the motor 
the difference is itriking. Mr. Edison's electricity is conducted to 
contrivance fr while e M tra pi : ™ self throu e h the wheels by an ingenious 
he^wten Pi ! ld ?? es another appliance, which shall be 

nnl ^ leaving it, however, optional with himsel.f to use 

one or both tracks as part of the conducting apparatus. «.) x x 


bears V blS ^ 0:imC 0f electee moto^sls^he promise % ' 

roads of ?£?! f?f n ° r th6m bein e applied to the elevated 

be testL^iL J^ y * M r- Pield,s invention, it is stated, will shortly 
adonted ™!?5, and -, lf s V c< r essfu l or tha best attainable, will be 

f.,?.,' . Pl an claims that to a certain extent cars or 

hu^tbis D T , +T kep i t a ® e r taln dist ance from each other automatically, 
but this, although plausible, remains to be proved. It would necessi- 
r nl y ^l! 0 lengths of track controllable by each stationary gen-, 
erator. Success to tne electric motors! 

New York Herald, August 6, 1800. 


A Talk With Mr. Stephen Dudley Field Upon His Patented Invention-Im¬ 
provements Made and Objections Combated. 

K X X X X X 


"Have you applied your scheme of electric locomotion in any 

"Mr. Field—I have made no model of my electro motor, and 
the first one I do make will be a full sized engine to draw a train of 
cars for trial on the elevated road. I have at present some business 
on hand for the Western Union-changing the system of electric supply 
for their telegraph lines from galvanic cells to dynamo machines. It 
works well and saves money. It is in full operation in San Francisco. 

"You began your experiments .in electro locomotion out there 
I believe?" 

Mr. Field—Ye3; I fitted a dynamo machine to an elevator and 
ran it up and down to illustrate the principal. 


"You have long pursued the study of electricity?" 

Mr. Field—Yes, and kept poor at it. I was out on the 
Pacific coast for seventeen years. The Herald was right in saying 

that my Uncle Cyrus and the Atlantic cable were responsible for my 
turning electrician. I was only twelve years old in 1858, when, after 
the first Atlantic cable, my uncle came to Stockhridge, Massachusetts, 
my home. For his convenience a telegraph office was made in a room 
in my father’s house, and the very first day it was put in there I be¬ 
gan to learn telegraphing. I was on the Oollins telegraph expedition 
to Behring Strait, and you should have seen me when I got back. 


"What is the difference between your machine and Mr. Edison's?" 

Mr. Field—Edison’s engine is very similar to Dr. Siemen's, 
which was exhibited in Berlin a year ago, except that HXEryrfckxxg 
Edison uses the track-solely as conductors. Dr. Siemen, however, has 
described accurately how it can be done in that way; in fact, just as 
Edison now does it. 

"What objection is there to Edison's method?" 

Mr. Field—It necessitates a wheel that is not solid, and 
•will not, I believe, stand the application of high power and heavy work, 
though it may do very well for a small engine like he has described as 
having at present. Why, an express train, going 60 miles an hour, 
exerts 1000 horse power, and that cannot be done, I think, with paperxx 
papier mache cores. Another thing is that the tracks are not contin¬ 
uously jointed and a break would be fatal. 

"Can you describe now any of the improvements you referred 
to in your engine?" 


Mr. Field—Well, there is my electric brake, but that is a 
simple matter. A more important one, however, that I may speak about 
is the means I have adopted for storing power when the train is at a 
standstill. A-heavy flywheel continues in motion all the time from 
the momentum it has gained, although the connection with the conductor 
has been for the moment cut off. When the train is ready to start the 
accumulated power will be added to that from the electric current. ; 


i; ■« "»;* your 

drawings and then it will nnt + 1, ' S0lCS 1 3ha11 S0t about the 
parts and put them together. TJtalTaiSVl manu * acture th ® 
that will astonish a good many peo^ C9 dyn8m ° maohlne 

"What dynamo machine do you prefer?" 

Edison's is nearly^he^ame?™ 811 S * ** elV0S the best results * 

view ended, ^o'e^r^fcinder^e elect ^ cal otters the inter- 
that he gives twice who gives £££ ^ ^ invenfc0rs 

Hew York Timas, August 9, 18S0, 

An Inventor's Workshop. 

* H X X X X 

The number of Edison's inventions now in operation, and 
with an exception or two, paying him an income, is not so large 
as would be inferred from running over his records of experiment, 
composing several ponderous volumes. There are among them the 
American District Telegraph, the electric pen, the repeater tele¬ 
graph, the duplex telegraph, quiadruplex telegraph, stock quotation 
register, automatic telegraph system, telephone, electro-motograph, 
phonograph, tasimeter, magnetic repeater, electric light, and elec¬ 
tric railroad—the latter in the mining regions of the West, being 
adapted to grades that cannot be climbed by steam, besides cost¬ 
ing for road bed in a hilly country not more than half what a 
steam railway costs, and for equipments hardly one fourth the sum. 

Edison talks enthusiastically of the time when electrical 
engines will be employed on the Pennsylvania Railroad, and says 
he can readily obtain a speed of 50 to 60 miles an hour with less 
danger of accidents than occurs with steam; for the rails transmit 
the energy that moves the train, and the instant the aigine leaves 
the track this energy ceases to be in communication with it. The 
other day, at a speed of 40 miles an hour, and with only a twelve 
year old boy to run the engine, curves of such short radii that a 
stoam locomotive would inevitably have left the track and broken 
our necks, were rounded in perfect safety without slackening. The 
light, open car in which the party rode swayed and oscillated, and 
came near whisking the passengers off at a tangent into a sand¬ 
bank, but the wheels attracted by that mysterious energy by which 
the whole was moved, adhered firmly to the rail. It must be 
owned that on the return trip Edison's guests were a little more 
vigilant when they went round the curves. The source of power 
in the little engine»-also provided with electrical brakes that 
arrest its motion almost instantaneously—is an electrical bobbin 
or rather an armature, revolving between the poles of a magnet, in 
the same manner as in an ordinary generator of the Edison-Siemens 
pattern. The two tracks transmit the energy to the wheels of the 
engine* the whole train being thus an armature that connects the 
extended poles of the powerful generator in Hie laboratory, and 
thus establishes a circuit. Prom the wheels the current flows 
through the bobbin, which revolves between the poles of a sta¬ 
tionary magnet. To stop the train, it is only necessary to take 
the current through a copper wire, instead of the armature, and 
tliis is done by the merest pressure of the finger upon the button. 
In experiments that have been conducted upon a section of the road 
having a rising grade of 50 feet to the mile, (about 1 foot in 
every 100,) this little engine has drawn loads that would severely 
tax the capacity of a locomotive upon the ordinary grades allow¬ 
able on railways operated by steam. Tjjn_£fic®sy^ania^Railroad 

with~~freig ht tra ins. first^and^henT'rf^'sitfsfa’gtotv.ri for paSsen- 
!?3g-EgAn^1u 3ut this probal& iLlia£ a»r^ '.future. The 

■ gcpfloiay_jtf_ electri city .&8 ^uiaoton^3 itja .fziiS\ as!j ^y^,pys^POTOT r ^ 
f , t-om..3QO,_pound^oT",.lo61Xs.,5pt. fn-queBt-ion^but 
'wfi oth_er It WtUcT’pro ve as reliable in all sorts of weather jL.s,...sqme- 
TTTfng that only experTence' carTYTairerrainel 

m - 

Hew York Herald, August 10, IfiGO. 


Hr. Edison Hot Troubled About Mr. Field’s Patent For An Electric 
locomotive—Quiet Criticism—A Practical Test Wanted— The 
Electric Light, 

At Kenlo Park the claims put ib rth on behalf of Hr, 
Stephen Dudley Field's patent in connection with an electric motor 
do not awaken any outward sicn3 of apprehension. There was some¬ 
th, ine very Jolly in the ring of Mr. Edison's voice as he explained 
to tho writer that it was all wrong to suppose Mr. Field's patent 
conflicted with hi3 applicat ions. 

"It is a curious tiling,® he said, "How vague the ideas 
of tho gore ral public are on the question of patents. Half, yes 
more than half, tho industry of the country i3 conducted under 
patents, but few know anything about their powers or application. 
There in no trouble and comparatively little delay about getting 
a patont, v/ith in certain well understood lines if the alleged in¬ 
vent ion Is only a device for improving or using in a new or partic¬ 
ular way some part of a machine already invented or in common use. 
That is What we call a little thing. But it is about the big 
things that there is dolay. Here i3 a case in point:—The tele¬ 
phone has b.een a long while in use, but not a single American 
patent has been issued yet upon the points that really control 
all telephones, while there are several for insignificant alleged 
improvements in telephones. The telephone is a 'big thing', and 
is in 'interference'—that is to say, conflicting claims are be¬ 
fore the Patent Office Authorities, and the process of reaching 
a decision i3 necessarily slow." 


"IIov/ doo3 that bear upon Mr. Field's claims?" 

"Just this, that Hr. Field's patent gives him a certain 
device to bo used in'electric locomotion, and nothing more. Y/e 
have had it in tho office for several days. I reforred just now 
to the confusion in the public mind about patents. People, for 
instance, are misled by the drawings. A man wants to improve a 
sowing machine in sotfie little particular. He draws an entire 
machine v/ith his 'improvement* in it, and poople think he has 
invented it all. Mr. Field has his combination of an electro¬ 
magnetic motor and its commutator, v/ith a circuit controlling 
lever capable of three positions, his railway-track rail with a 
slotted tube containing an insulated conductor and sane hot Water 
pipes for his tube. All that is nothing to me. The whole thing 
is a device for a particular object, and Mr. Field is welcome to 

"Then you do not consider your engine endangered by any¬ 
thing in his claim?" 

"Hot in the least. My engine he& been running since 
last Kay; my applications were duly filed, and we have received no 
notice of interference. The things are completely different." 


"Wiat do you think of Mr. Plaid's Jlevice? Is it an 
improvement on yours?" 

"The proper way to settle that Is to put his device to 
practical test. This much I may say, that I think the bar or 
lever going down from an engine throueh a slot in a tube to a 
cohductor rather dangerous and fcikely to prove impracticable. He 
will know when he builds his engine. The difficulties are great 
for him, first to secure constant contact, next to work his lovor 
and then to take off his power. He cannot take off more than 20 
horse paver, and high speed will be impossible." 

"Mr. Pield has stated that you cannot work your ent-ino 
at hich speed doine heavy work with whoels having papier macho 
cores." ~ ... 

"V7ell, v/o do work with them and will keep on working. 
That's all right. They have lots of them on his Uncle's road. 

I am preparing for a test of my engine on that stoop grado you 
have seen back of wliero wo stopped the engine when we took you 
'out the other day. I am also building the engine for drawing 
freight and passenger cars on a branch of the Pennsylvania road, 
and thon v/o shall know all about solid wheels and other things. 

T see, too, that Sawyer has been writing another letter. lie 
says that electric engines will wear out more quickly than steam 
enignes. Wliat nonsense* But Sawyer must always writo a letter. 
He can do that first rate." 

To prepare his prosont electric engine for the work of 
ascending the steep grade referred to, Mr. Edison i.3 now putting 
into it the proper machinery to take the place of the temporary 
belting he has been using. He i3 in no way worried about rival 

S3 /?Uy £6^37- 

C $6 

leu r/fauuMUt// 

^ vi 75^ eff 

/f. Z/, Muaj) /o'*YfM. Cot Coot 

iu/&Y 1/LoUJ dCty/C '/'— ^ 

Cb(Aso O YcOCudX cd 

Y^XtX jCloJPJ? A^utuj CUdd dYinc/' ScYcf 

7 * 

Hew York Herald, August 10, 1880. 


Everyone hard at work—Edison’s Electric Railroad in Working 
Order—Progress of the Gold Hunters. 

When the large gearing wheel of Edison’s electro motor 
burst about one week ago he at once set to work and devised another 
mode of transferring the power (generated by the revolving arma¬ 
ture) to the wheels. He had three wooden pulleys made and con¬ 
nected them by belting ■ t~ «, the pulleys being so proportioned as 
to get a good velocity at the turning shaft. He was "cruising' 1 
up and down his three-quarter mile railroad on Friday last when 
notice cane that the officers of the Austrian corvette Saida were 
approaching. He at once began to show them everything worth 
seeing in and around the laboratory, and, after the visitors were 
satisfied with examining the novelties he gave them a ride on his 
new railroad. The distinguished party, or at least some of the 
principal members of it, took seats on the car that is attached 
to the motor. A small lever was moved connecting the circuit, 
and away they went. The speed attained while going round the 
curves was anything but pleasant to those on the cars, but, al¬ 
though the road is new and is very indifferently built, no accident 
occurred. The party returned by a late train to the city, feel¬ 
ing that they had seen one of the many wonders of the Republic. 

Mr. Edison proposes to build an additional mile and one half, in 
which there will be one grade as steep as one foot in every six 
and three-quarter feet. This will be into a deep gully and up 
the other side. His intention is to show that a train can be 
run wherever a horse can draw a wagon. 

Hew York Daily Advertiser, Aug. 12, 18S0 

Edison talks enthusiastically of the time when 
electrical engines will be enjoyed on thePennsylvaniarailroad, 
and says he can readily obtain a speed of 50 to 60 miles an hour 
with less danger of accident than o.ccurs with steam,for the rails 
transmit tlie energy that moves the train, and the instant the 
engine leaves the track this energy Ceases to be in communication 
with it. The other day, at a speed of 40 miles an hour, and 
with only a twelve year old boy to run the engine curves of such 
short radii that a steam locomotive would have in^abiy left 
the track and broken our necks, were rounded in perfect safety 
without- slackening. The light, open car in which the party rode 
swayed and oscillated, and came near whisking the passengers ofx 
at a tangent into a sand-banlc, but the wheels attracted by that 
nvsterious energy by viiich the whole was moved, adhered firmly to 
Te rails! It mat be owned that on the return trip Edison's 
guests- were a little more vigilant when they went round the 
cruhes. The source of newer in the little engine--also Provided 
with electricoforakes that arrest its motion almost instantaneously- 
is an electrical bobbin, or,, rather, an armature, revolving between 
the poles of a magnet, in the same manner as in an ordinary gener¬ 
ator of the Edison-Siemens pattern. The two tracks transmit the 
energy to the wheels of the Wine, the whole train being thus an 
armature that connects the extended poles of a powerfu gencra 
in the laboratory and thus establishes a circuit. From the 
wheels the current flows through the bobbin, -hich revolves be¬ 
tween the poles of a stationary magnet. To stop the train, it 
is only necessary to take the current thraigh a copper wire, in¬ 
stead of the armature, and this is done by the "^est pressiire 
of the finger upon the bdttort. In experiments that have been 
,® ted uuon a section of a road having a rising grade of 50 
feet to a mile (about one foot in every hundred) this little engine 
has drawn loads that would seventy tax the capacity °^l°=° m0tive 
upon the ordinary grades allowable upon railways °^ated by 
steam. The Pennsylvania railroad company talks of trying elec 
tricity as a motor,--so Edison says— with freight trains first, 
and then, if satisfactory, for passenger transit; but this P r ° b£bl y 
lies very far in the future. The economy of electricity as a 
motor utilizing as many horsepower from 300 pounds of coal as 
steam* from 700, is not in question; but whether it would P^e as 
reliable in a-11 sorts of weather is something that only experience 

how York Tinea, August 9, 1830. 

An Inventor's Workshop. 

K k k x x ■ x 

The number of Edison's inventions nor in operation, and 
with an exception or two, paying him an income, is not so large 
as would bo inferred from running over his records of experiment, 
composing several ponderous volumes. Thoro are among them the 
Amor lean District Telegraph, the electric pen, the repeater tele¬ 
graph, the duplex telegraph, quadruple* telegraph, stock quotation 
register, automatic telegraph system, telephone, eloctro-motograph, 
phonograph, tasimotor, magnetic repeater, electric light, and elec¬ 
tric railroad—the latter in the mining regions of the V/est, being 
adapted to grades that cannot be climbed by steam, besides cost¬ 
ing for road bed in a hilly country not more than half what a 
steam railway costs, and for equipments hardly one fourth the sum. 

Edison talks enthusiastically of the time when electrical 
enginos will bo employed on the Pennsylvania Railroad, and sy.ys 
he can readily obtain a speed of 50 to 60 miles an hour with less 
danger of accidents than occurs with steam; for the rails transmit 
the energy that moves the train, and the in stem t the aiglna loaves 
the track this energy ceases to bo in communication with it. The 
other day, at a speed of 40 miles an hour, aril with only a twelve 
year old boy to ran the engine, curves of such short radii that a 
steam locomotive would inevitably have loft the track and brokon 
our nocks, wore rounded in perfect safety without slackening. The 
light, opon car in vlrich the party rode swayed and oscillated, and 
came near whi&Icing the passengers off at a tangent into a sand¬ 
bank, but the wheels attracted by that mysterious energy by which 
the v.hole was moved, adhered firmly to the rail. It must be 
owned that on the return trip Edison's guests were a little raoro 
vigilant When they went round the curves. The scarce of power 
in the little oi;gine»-also provided with electrical brakes that 
arrest its motion almost instantaneously—is an electrical bobbin 
or rathor an armature, revolving between the poles of a magnet, in 
the same manner as in an ordinary generator of the Edison-Stenons 
pattern. Tiro two tracks transmit the energy to the wheels of the 
engine, the vholc train hoing tints an armature that connects the 
oxtencled poles of the powerful generator in liie laboratory, and 
thus establishes a circuit. Prom the wheels the current flows 
through the bobbin, which rovolves between the poles of a sta¬ 
tionary magnet. To stop the train, it is only necessary to take 
the current through a copper wire, instead of the armature, end 
this is done by tho merest pressure of the finger upon the button. 
In experiments that have been conducted upon a section of the road 
having a rising grade of 50 feet to the mile, (about 1 foot in 
evory 100,) this little engine has drawn loads that would severely 
tax the capacity of a locomotive upon the ordinary grades allow¬ 
able on railways operatod by steam. The Pennsylvania Railroad 
Company talks of trying electricity as a motor—so Edison says— 
with froight trains first, and than, if satisfactory, for passen¬ 
ger transit; but this probably lies pretty far in the future. Tho 
economy of electricity as a motor, utilizing as many horse power 
from 300 pounds of coal as steam from 700 is not in question; but 
whotlier it would prove as reliable in all sorts of weather is some¬ 
thing tliat only experience can determine. 



• Haying Four Conplei Wheels and a Fonr-Vbeeled Rear Track, 

Manhattan Railway Co. 

CYLINDERS—11 in. iliiunutu.- and IB in. stroko. 
DRIVING WHEELS—42 in. ilium. overtires. 
GAUGE—4 feet 84 iiiclius. 

FUEL—Hard Coni. 

TOTAL WHEEL BASE-ulmnt IB ft. il in. 



WEIGHT—in working order. Total about 811,000 

GENERAL DESIGN—Engine No. 281. 

BOILER. —Material—Made throughout of host Otis steel plates, f t inch thick, riveted 
with j-inah rivets, placed not over two and one-quarter inches from editor to'center, ail horizontal 
scams and junction of waist and furnace to be double riveted. All parts well und thoroughly 
'stayed, anil extra welt pieces riveted to inside of sido slioets, providing double thickness of metal for 
studs of expansion braces. All plates planed at edges und caulked with round-pointed caulking tool, 
insuring plates iiguinst injury by cliipping and caulking witli sharp-edged tools. Boiler to ho tested 
with hot water to ISO pounds pressure per square inch. 

Waist—Forty inches in diumeter lit smokc-hox end, madu straight and with one dome twenty 
inches diameter and twenty inches high, placed centrally on liailer. Smoke-hex dour to bo ribbed 
inside. Door to be held with clamps. Number plates to he hold to smokc-hox door with a lixod 
stud. Dome cap to have east iron collar to avoid drippunr of water from safety valves. Steam 
pipes of east iron. 

Tubus -Of lap-welded charcoal iron, with copper ferrules on lirc-lmx ends. 120 in niiuilior, 
14 inch diameter and 82 inches in length. 

Fire-box—42$ inches long, 84$ inches wide inside, of Otis best steel plates, all plutcs 
thoroughly annealed after Hanging. Side, hack mid crown sheets five-sixteenths thick, flue shoot ono- 
lmlf inch thick. Water spaces, sides, hack and front, 2$ inches wide. Stay-bolts $ ineii diame¬ 
ter, 4$ inches from center to center. Fire door opening furmed by flanging and rivoting together 
the inner and outer sheets. Grown sheet formed circular und stayed to roof sheet by radial stay- 

Cleuning Holes— Gleaning plugs in corners, sides, front mid back (2 inches diameter), also 
cleaning plugs front under waist; 1$ inch blow-off eock ill front of flre-box. 

Gratis Bars—Water tidies 1$ inch in diameter, uhoiit 10 in iiiimhor, witli two drop bare. 

Asli 1’iui—Ten inches deep, No. B iron, witli a damper on each side, and a row of 1$ inch 
holes on each side; to lie water tight. Dampers to lie tightly fitted. 

Smokestack—Straight, of cast iron, 11 inches inside diumeter at bottom, 12 inches inside 
-diameter at top. Design as per drawing to ho fiiriiialicil by the Manhattan Railway Go. Boll cord 
loop on left side six inches below top. 

Feed Witter—To be supplied with two No. 4 Friedman Injectors. 

Foot Plates—Of east iron with corrugated surface. To bo Hanged over the frames ill 
ired thoreto. Thinning boards of sheet iron stiiTencd with angle iron. 

Cali—Cub of snnio design mid finish ns Engine 281. Cab roof gutters to liave outlets o 
is. ^Doors to bo nindo to slide. Cab bandies wrought iron. 

Finish—Same ns Engine 281. Cylinders lagged with wood and neatly eased with in 
ited; head covers of cast iron, polished; steam chests, with east iron tops m i overs j rl I 
e; bodies eased with iron, painted. Dome lagged with wood, jacketed with iron, pninti 
l top mid bottom rings. Boiler lagged with wood, neatly jneketed with Wood’s Russia in 
ired by plain Russia bands. Buck cylinder cover to be made in two parts, neatly joint 
night iron straps and cap screws. 

Furniture—Engine to bo furnished with two sand boxes, so as to sand in both din 
Is connected with levers on foot-hoard. Brackets to hold signal lamps at both ends, 
g to ring in either direction. Whistle, 2 inches diameter, 2i inches long, with stop-coek bet 
connection to dome. Two safety valveB with Shaw’s inufllor attached, Crosby’s Patent An 
mi gauge. Six-inch cab lamp. Three gauge cocks, with drip pan. Oil can and tallo 
o, a complete sot of toolB, consisting of one pinch bar, u complete set of wrenches to fit u 
nuts on engine. One Inigo mid ouo small monkey wrench, one hard hammer, one soft ha 
chisels, tool boxes, cab seat, poker, semper, clinker hook and slice bar. Tender brake diap 
o secured to the frames or the back end of fumnee, anil not to both. 

Painting—-Engine to be handsomely pamtud and varnished, mid ornamented sn 
;ino 281. 

Construction—All principal parts of engine accurately fitted to gauges I I j I n 
•oughly interchangeable. All finished movablo nuts mid all wearing surfaces of machine!-; 
leel or iron case-hardened. All wearing brasses made of ingot copper and tin alloyed 
lortion of soven parts of the former to one of the latter. All threads on bolts to he 
es standard. 

Tank—Strongly put together with angle iron corners mid woll braced. Top .anil I 
2S of No. 0 iron. Side plates of No. 8 iron, riveted with $- inch rivets, one and one-t 
pitch. Water capacity 000 gallons. Reservoir under tank where feed-pipe attaches, 
kcr, capacity about 1,000 pounds, same as Engine 281. Manhole in tank to have a fit 
n- with wrought iron cover. Coal box bottom to be covered with inch wrought iron 

Tool Boxes—Onu tool box, of iron, placed back of tank. 

Brakes—Emiics’ Vacuum, the latest improved. Ejector in cab. Muffler attached to t 
uf ctured by Thos. Slutw, Philn. 

Draw Bars—To be made of wrought iron, of skeleton pattern, to same length, heig; 
us present burs. Steadying spring to bo placed on top side. 

Hooks—One hook on each end for Vacuum Brake Jiose. 

1 “ “ “ Heater Ilose. 

General Manager. 

■j-r- /t-oc-C. {L'^C'i^A 

^ y?u4. Mw--&u. £k &. , 

tsr‘ READ 




Railway, Steam and Gas-Fitters’ Supplies, 

No. 46 Cortlandt Street, 

y 1ij.jQ.Ajd. 

.188 r 





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. Cty^ <n*-c y.c/'-t sct/t 

/ A fy&t’t'* . S2y/U/y oLfc.'/zC/^ 

!’ew York, Nov. 4th. 1081. 
05 >'ifth Ave. 

'My" Pear Colonel: - 

'• ‘ It is soi-i© time sin©© T wrote you tho reason 

'being that with lir. Johnson on the spot there was very little thut 
<1'eould tell you from hero. T do not think matters have taken any 
’ri'bW ’departure sine© Johnson left and T merely write' this so that 
•yOijt'shall not think that T have entirely forgotten rny promise to ‘kp 
‘ke'ep you pee tod as to progress made on this' side of the water. 

= Edison is working very hard indeed and has boon' for a’ 

long' time-past and he has now the pleasure of seeing all his var¬ 
ious'-'shops -running with such charming regularity that it almost 
becomes monotonous. Our capacity for turning out those small dy¬ 
namos is almos t unlim.i tod. We have 40 n now under way and when 
that lot is finished shall probably go ahead with another order 
of about the same number.' Last week we turned out twenty three. 
■;Th'i‘s‘ wekk wo shall do about the same. Our Lamp Kaetbry has a 3 took 
•o’f iJO, 000 lonips so that it can keep apeo'e with our output of : 
.ma'C’Kihos. The main business in hand Just now is tho laying of ' '■ 
'street mains for the Central station work. w© do this work en~ 
•-t'i'rbl’y at night and as the result of two or three night’s at ton- 
ift'l.ori' paid to it by Hr. Edison he has got it sys tematised so that 
'■Wit'll quite a small force we can lay one thousand* feet a night. ' f ' 1 
.■:w£&''dbwn to tho Central Station, to day and S'aW them putting in tho 
first boilers. These go undorneat tho dynamos the latter being'! 
carried on a structure built very much after the stylo of the 

Bleyoil rtailroad here. 

Mr Bills on is now having a new traok laid for his electric 
railroad. Tt will bo about t!r*ee miles long on perfectly level 
ground and is intended for experimenting oh traction, speed and 
■such like matters. Ho is building a passenger locomotive which' 
Will' las fitted up in splendid stylo and which will have a maximum 
capacity of one hundred miles an hour. • wh'eth'er it v/ill ever 
in a$ this rate when finished v/ill very 1 mu’ch depend upon the 
;,j.e of the driver.. T think it would be a very good spoculivt- 
\ii insure the lives of the passengers the first time Mr. Edison 
determines to run at this spped . Thor, he is going' to build 

a ’freight locomotive which will have sufficient power to draw 
cars each carrying Ions of freight. T suppose that the 

whole thing will be finished in say "three months or maybo a little 
longer. The road bod is all „'* a ded so that the 'permanent way 
•will! be coMplted in a very short time. 

•;You may remember those two bronxe medallion' portraits ’ 
•of Mr. Edison working on his Phonograph which was got up by Mr. 

• kelly and which were sent over in a package of Telephones uoi.Vo 
■t ii':ie’"i'n the latter part of ’ 79 or ’ GO I am not sure which.'Hr. ; :' 
Kel'iy' was in ha* e the other day and T promised : t’o' see if you could 
ttc> 'anything with a number of those. He had to''give up the work 
in.'order to attend to some other matters but - 'ho 'is now free and 
coUld’ let you have a supply if anything could bo' done. Cannot' 
you put Mr.Kelly in communication with the London Sterescopic 
Co'.? Considering the honors which Edison has gained at Paris 

7 tdznr-7/~* 





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14 Southampton Bld’gs, Chancery Lane, 


, , „ c c ENGLAND. 

14 north 5th Street, 






|Iron end Steel Rsils. Blooms, 

| Pig Iron and Metals Generally. 

We offer our services, both in America and Europe, as 
confidential agents for the purchase of rails, blooms, pig iron, 
I plates, &c. t &-c. 

We feel sanguine of satisfying our friends in making 
contracts for their account, directly with the manufacturers, as 

j ^connections'. 1£ f~J la $.EWGi t }Lg 

! i.Buyers should bear in mind, that orders entrusted to 

| one reliable and capable parly, can be placed to far belter 
advantage (and without disturbing values) than if quotations are 
asked for, from half a dozen sources. 

We solicit a portion of your business, and to those un¬ 
acquainted with our house, will give satisfactory references, on 
application. Hay (Respectfully, 


Cable Address, 


eo Negotiated In London. 


^John ^tephenson l^ompany, 



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24 BROADWAY, AND 77 & 79 NEW STREET, p. 




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Menlo (fork, N, 




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CUj. hr^c^jL Jiuy^AA-J^ 

[- owmtm ow 

| The Jers^dty Wheel Foundry and Machine Works, 

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a. e. a. a. s. a. a a. ll a. o. ei a. a. s. e. s. tL s. t* 

iii, BETWEEN LtLU.iifl.ii A* 


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^ I EDIQ^I ). ,T i 1 i TL> ,% ^ H ^l« L ! JJtlHi F i)i flDlffi ^ 



Gary to the carrying out of this agreement, also the exploita¬ 


and all transactions, agreements or sales of the inventions iiepe- 





Th/2 Jersey City Wheel Foundry and Machine Works, 


P. O. Box 125 , 

/ ^/ / ^ Uy ' C^y ^/L^esy*<_ 

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. The Edison Electric Light Company, 

65 Fifth Avenue, 

New Ynrk » arch 3rd - 

C. 0. Curtis, Esq. 


Dear sir: - 

Major Eaton directs me to inform you that probably 
the electric railway will Be run at Menlo Park tomorrow afternoon, 
when several railroad men will probably visit Menlo Park, leaving 
New York on the one o* clock train to inspect the road. Should 
you desire to witness the test, will you please go to Menlo Park 
on the one ohclock . train, and present this letter to Mr. Insull, 
or to Mr. Hughes, apd they will show you every courtesy? Will 
you please say to them at the same time that you are one of the 
electrical experts regularly retained by this company. 

Very truly yours, 

F. Me. Gowan, 



^ TUEb?TUo2xl7Troulanil amjilt. oi'i'iom OB’ ja^'dayies^ 

TJjdjersey City Wheel Foundry and Machine Works, 

Chilled and Steel-tired Car Wheels. 

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Mijnlo Park, N. J. 

• Of-e*~c¥~-z&o> 

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Vice President's Office, . 


NEW York, August 25.1882. 

Mr. B.P.Fabbri 

My dear Sir: 

I have to acknowledge the receipt of your favo* of yes¬ 
terday asking us to place at the disposal of Mr. Edison a' pieco of 
track for experimental purposes. I have referred your letter 
to llr. Barton the Superintendent, and I have to recommend that you 
put Mr. Edison* s representative in communication with Mr. Barton 
personally, and if we have what will suit Mr. Edison* s purpose, we 
do what we can to accomodate him. 

. 1882. 


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York, October 30th. 100?.. 
05 Fifth Avenue. 

William H. Ridelng, F.sq. 

!-• .• Boston, Mass. 

Dear Siri- 

■ I have boon so very busy all the week that I have 

found it impossible to write you as promised before this. The 
article in Scribner yo’.> refer to was written at the t.imo when 
Mr. Rdioort was first oowmdneinc his experiments on electric light¬ 
ing. Th'e statements made in it are in the mam correct but it 

.refers to lines of oxpen men tang which Mr, Bdis 

> the 

extent' forsook in ord or to give his undivided attention * 
development of his system of electric illumination. His Phono— 
"graph novr’ is in practically the same condition that it was at th 
time' -tHV'art iclo was written. To'has experimented on it brit'"ver< 
little since and it is to day what it was at that time mechani¬ 

cally 1 

l scionti’fidally very wonkerful « 

i yet ; 

simple biit; of 

> practical value cd'huiorcially, noubtloi 

irre pfiri’od when Mr, F.dison has &jj>ro time on hand ho will tako it 

; itp and' 'apply it to some praet: 

cal put 

i but at, present there • " 

'do'e's'n'otsoom to be much prospec't of his hemp able to do so'. 

•The* 'saids' remarks apply to the Aerophone and to the Megaphone. ' As 
* t'o"‘thfli Microphone, that is simply.' .another form of his carbon 

r the World'.' Mr. Bdi- 

telephon’e 'Just 1 now extensively used, all < 

•le a 

; T hardly think there'/i^ anything new which you could 

■ son'has of late years given but ljitt'le attention to telep,i‘aphic 
ere'/ii i 


mako hso of in your paper. In fact, his who.lo time has boon do- 
votnd to the perfection of his electric light inventions. Yon 
ask what are tho difficulties An tho v/ay of the general adoj/tion 
of nlddtrioity- -As an illurninant in houses and state that you rn'for 
that t-hb only difficulty is tho expense of tho original plant.' '' 

•As'd'Matter of fact Mr. Bclison has put his system of electric ' 
linliting into general use at the present time. The only difficulty 

•Scientif ic Monthly you will be able to get a very clear idea of 
what. Mr. ltd 1 son'has done in connection with electric lighting. Tb 
The' district which we are now lighting up is bordered by '.Vail, 
Nassau and Spruce streets and the Bast River, we have at the " 
present time about 2500 lamps of 10 candle power each connected 
uj with our system and ./e are connecting others up daily. Whon 




we have the full complement of lifehts burning which will be in the 
course of tho next few months we shall have between 14 and 10000 
•lights on the system. Prom this you will see that Mr., fidiaon 
and his co-workers look upon tho problem as’ absolutely solved " " 
and as soon as .we got everything in full running order wo shall' 
invite 'experts to make the necessary tests to prove that we can 
produce light by means of electricity cheaper than by means of 
.gas . In addition to giving light in this district we shall 
also supply electrical power. Rlectric meters will bo connoc- '" 
tod with electric mams m precisely the same way as wo connect" 
our lamps and by means of these meters wo propose to run all 
kinds of small machinery up to 5 or 10 W. P. ’.70 can operat'd'" 

ajfan or a sowing machine an 'ellevator or a dumb waiter a printing 
pressJ in fact all kinds of small machinery, We shall not. go 
boy'o'n'd tho 5 or 10 ”, P. as there is far more money to be made 
an th'e supply of small power electrically. The reason for this 
is that tho small steam engine is very uneconomical and requires' 
a very consumption of coal as compared with small engines’ giving 
creator H. P. '' k 

> about tho same capacity £ 

•••jRivoi* Railroad steam locomotj 

When this has boon t ’Sted i 

Rue land for tho purpose of exploiting 

W'-fltiOBtr-ii; railroad there. 

rritinp a series of"articles 

^ (^n •drootric lighting e 

you could have a talk 

than 1 could possibly v 

If you require any typos I can T think supply you 
ilVoAi as m have a considorablo stock of thorn referring to v 

Hr. Edison’s electric iiRht !' Thorb i 
actionwith' tho systoin that 'IT' you v/i 

look Into and "fiet an understanding of i 
dbrfd" YuU hack by this mail tho uol.<y of 

hinany details in corih- 
»re personally you' could 

Not York, October Both, IflB?., 

. - ' 05 Avenue. 

•<ly , hoar Matchelor: - 

Your favor of the 10th, mat. came. duly 
to' hand'.' -'V/ith reference to Vabbri* s option on European stock, 

L do' not knot/ whether ho will take it or not. tt will' fer'eatly 
depon'd T think tn the market price of the stock. The terms of. 
the pption’ are as follows; ' Edison is to give r *’abbri not'ic’e that 
ha conRidhfb t'.o first station m successful operation and "abbfi " 
, is td 'haw* the - right to take the European stock at par within 
t'hreo mo'nt'hs of that date, Nov;, Edison has not yet given "ahhri 
that'not'lco, 'to has been waiting f o get two or three dynamos 
running together , Th ls he has successfully done experimentally, 
and we'Shall have them running' next week with the lamps on and 
as soo'naas tl'.ey have been going -t or 4 days I propose suggesting 
to Edison the necessity of at once giving Fabbn the necessary 
notice. personal impression that Fabbr will exoroi's'o 
■ ••this option and' take the stock. I have not got any definite 
‘grounds' for this idea except that Winslow, ham or H Oo. who are 
iri't'or'e&fod -with Mr. »abbri in the syndicate which took the first 
block of stock busied themselv is considerably about European bight 
Co. 'affairs v/he'n Uailey was here. T rather fancy that' Droxoly 
Morgan £ Co'. will endeavor to’got, the control of the European Co. 
when they'see that the first district is going to be a success. 
'ta'iTey lias soiilo ideas as to this, .nat,tor as they had frorpiorit con- 
vs'rs'afcioris' vith him on the subject. You might sound him about 

it W . do not ton hi. t« I h.« «i~. ,hl " 

•V ***** hi. X *..ld «, nothin. "f “ • 

i. « ori.indl stmru0 * -motion «. not -an, « 

/ r ; ipht - , 0 toll you what T. know about it as long as 

hava aperfect riGht to 3 ........ 

t know that -kuson is willinB that I should. 

aorpinann & Co. are xn full occupation of thoxr n«w 
os tablxshmont and it xs running splondxdly. 

,„e of tho most'slogant factorxns xn Mow York. Thoy started 

movxns two veeks ago yesterday(Saturday) and on tho >musd y 

follow infl had all thoxr men at work again xn the now ^ ^ 

Tho/ aro preparing to double up thoxr capacity in most *«*«'• 

i,roi>o*xo ordorxng much from thorn I thxn^ 

' wonts-'’and ir your people 1<> opo-o 

: •„,,-. rf vU b-a served far ,om promptly than heretofore. Thoy aro 

G oxng to make money undoubtedly and 1 think your 10 per cent xn- 
•0-or.isf on Kdxsoh’s ono third xskR sharo -will bring you xn 
dollars at least .luring tho first year of the partnership. 

• ; •• r.o'erck street is pretty hard pressed just now. ‘ ^ have 

' aboht ICO to .100, 000 dollars'Svorth of stuff on hand and xf you ' 
A. can’ send ns solne orders for I.? Z, or 0 dynamos you ml bo doing 
\ , groat favor. The Lamp Factory xs going along, prossfy 

.fSwi'lV They aro not making money on their lamps but I do not think 
' they' ate l'osing any now. I. have got Mr. howrey to agree to a 
.*•; -cl'husb in tho new contract providing that the Lamp Company shall ’ 
haye"4'0 con’ts Tor every lamp and wo aro to settle tho do taxi- 
tho cont'r&oV '■ 

t.f c.» nlf Wit fit 

ja ail think this a vary pood move. Johnson wont in as the nom¬ 
inee of Mr? ftdison and brexol, Morgan & Co. 

The'Isolated Company still continues to thrive, I 
’ - think that on the first of December they will declare a dividend 
of 10 |/or:"‘oon t’ They ar e got ting orders every day arid their plants' 
give entire stais'faction. The first district, is still running 
with orio 'dynamo-, fclison has got that rigging for the coupling 
device all fixed up and all last week the boys .-ere practising 
throwing in and out .erichineo. Me promises to put on over a" 
thousand more lights tomorrow or Tuesday and another thousand will 
follow Very soon a<*tor. from the figures I do not think it will 
be'more 'tivari a rnonth before instead of tha first s tat ion "boinr' a 
drag on the resources of the Illuminating Co. it will be a sourbo 
of income to them, or course not. very much at first but they 
will 'come all right after. It will be a great thing to be able 
t® Inafce' some money three months after the Tirs t station is started* 

. APPAXHS, English flight is getting into' a do- 

li'ght'ful pickle. We have had some very sharp correspondence' • -> 
indeed with the English Co. ' In fact about the sharpest business 
Corres'p'o'n'denc o that T ever had anything to' do with. It"has ended 
by >Tr. Arnold 'Wite starting for America with the object- of trying 
to s.-ito-dth things over. The trouble'is though that, a. White as " 
not bailable of'running an electric light company. T told Johnson ’ 
this■>a ; t'"the tins of his appointment-. ’ Johnson admitted the truth'- 
i'f it and said that A. White was* to> be' Secrotary and not 

bit sib es r s 


’■''3*^™° r. h. i. th. l.«.r »nd »»- 

old Hr. Jouvrlo thiol.. Whit. « •»*“• «ttum 
* ,, vi. uut from private information Johnson fjots from 

' : ;4tho position. But from privs 

/ ''Jiori'don 'it’'would appear to us 
i "' no you "hoar anythih'i: 

■' '"^iiV-v'sDX^ SWTTZIW.AMD. ' Wh" 

that tho wholo business in bhihg : 

3 Sooioto it,. I let riuquo has 

•ft?' ''‘^^Sfe-offlp-ahiSs- w< 
.*^rrand'. ’-Th' 

’ this tc#)Bailey 

3' 'formed n ivin C ^he 

; lonf; boforo the 1 

i of tho r-'ronoh oouipam* 

i to Mrs Batchelor, Believe r 

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NEW YORK, OE0R I4TH 1882. 





company,and perhaps'another friend or two. 

THANKS FOR your' thoughtfulness in this matter 


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■ ^/i/yle/i^rfi/yewld —---- 

S # 1 »ffk Hon » PPf j #Io:a ftu )« rtttWX. pns»J,»!K 1- .f J^yf ' 

pur mechanician has infantad an apparently feasible 

dov ( loB for magnetizlng^rails so as to increase the traction or 
thf^. lo«orna ? tivoand wants me to take it up with hinu His patent 
Jawy^r !^or s ts no American patents on the subject and the inven¬ 
tor knows of none except, Werriem^jnns of London, and that is en¬ 
tirely different. I am certain, however, that l have heard Mr. 

v--r,.VKOJ.|MOO 03 {»U(« .Oil ro.i SH*, hjo |;i 4 «u- 

Edisjiti ^lai^ipcreased traction for his electric looomotive and 

.think 'he must have such a claim amonp his patents. Will you 

! ' •.WMonviw wifjf v ; •»« n louansrs-j $jt.. , . . ;-';t 

kindly advise me or the facts and explain his devinp and claim, 

->n>. m:n:o- ■ ' . - 'Pi 

.01^ refer me to his patent if issued? 1 dont want to spend any non- 

i thing already covered, 

if it is a clear field l may 

io so - and in ^Jiat eaae^will lay it before Mri Edison. Pardon 
0?ri f ^!*8li5^^|e^ * you * but 1 * now hH ls wry busy‘and that you 

are pood natured# 

With kind regards, Truly Yours, 


inventions, caveats, applications for patents, patents, grants, 
concessions or privileges. 

That the amount of the Capital Stock of the said Company 
is to bo Two Million Dollars. 

That the term or the existence of the said Company is 
to be fifty years. 

That the number of shares of which the said Stock is to 
consist is to be Twenty thousand shares, at One Hundred Dollars a 

That the number of Trustees who shall manage the con¬ 
cerns of the said Company is to be nine, and the names of such 
Trustees for the first year are 

Henry Villard, of New York City, 

Egisto P. Pabbri, oT New York City, 

Orosvenor P. Lowrey, of New York City, 

Sherburne B. Eaton, of New York City, 

Simeon 0. Reed, of Portland, Oregon, 

Stephen D. Pield, of New York City, 

Robert E. Deyo, of New York City, 

Charles W. Rogers, of New York City, and 

That theiop,er at ions of the said Company shall be carried 
i in.the United Stateser1Ca and the Dominion of qanadafand 

the principal offii 

■r the Company shall be in the City of New 

York, County and State or New York: 

IN WITNESS WHEREOF, we have hereunto 
set our hands this Twentieth day of April, One thousand eight 
hundred and eighty three, (1883). 

E. P. B. 

G. P. L. 

(Signed). S. B. E. 

T. 2. E. 

Simeon Q. Reed. 

Stephen D. Field. 

R. E. Deyo. 

C. W. Rogers. 

««?* ^ «• «* mm 

M-E. -M.Ill W D U M of an A 0 R E E M E.N T between 
Stephen.D. Field and Simeon G. Read, on behalf of themselves and 
associates, of the First part, and Thomas A. Edison and S.,B. Eaton 
on behalf of themselves and their associates, (including the 
Edison Electric hight Co.), of the Second part. 

W H SH EAS, Mr. Field and Mr. Edison have each been 
engaged in experiments and inventions having for their object 
electrical propulsion on Railways and have each obtained Patents 
and applied for other Patents, and it has been proposed to unite 
the two interests, and 

, W H E R E A S, Agreements have been entered into between 
the parties hereto of even date herewith, for the formation of 
another Company uniting all or the interests excepting the rights 
to use upon elevated railroads in the City of New York, and 

W..H. E R E A j>, it is proposed to unite the two inter¬ 
ests for use upon elevated railroads in the City of New York 
It is, therefore AGREED as follows: 

-?-• A_CO RP QRATION , under the laws of the 

State of New York, shall be formed within six months Trom the 
execution of this Agreement, to which shall be transferred all 
the inventions now owned or controlled by the parties hereto, 
being exclusively applicable to electrical propulsion on Railways, 
but not includ&ng lighting and heating by electricity, to be used 
only upon the Elevated Railroads in the City of New York now ex¬ 
isting, dr that may hereafter b^extended from the present Elevated 
Roads, or independently .built'. 

All' future inventions or the said Edison made prior to 
January 13th. 1880, and all Tuture inventions of said Field made 
at. any time hereafter which may be exclusively applicable to elec¬ 
trical propulsion on Railways (but not including lighting and 
heating by electricity) shall also be transferred to,the said Cor¬ 
poration for use upon the said Elevated Railroads. And the said 
Corporation shall also receive exclusive licenses to use on the 
said Elevated Railroads allj inventions which have been made or may 
be made by the said Edison before January 12th; 1880, and which 
have been made or may at any time be made by the said Field, inci¬ 
dental to such propulsion, exclusive of lighting and heating by 

The stock or the said Corporation shall be used for the 
purchase of the rights or license to use upon the said Elevated 
Railroads, and shall be divided as follows: 

_(A) Sufficient thereor shall be sold to pay into the 
Treasury of the parent Company above referred to, a sum equal to 
the proportion that the Capital of the two Corporations bears to 
the Capital of this Corporation in the amount paid by the parent 
Company to the said Field and Edison, to reimburse them for their 
cash outlay in experiments, or in other words, this Corporation .. 
shall contribute pro rata, with the Capital of the Companies 
towards such reimbursement. 

(B) And after such reimbursement the remaining stook 

naS 1 anH d r Vl r?* d; rifty P° r o cen t (50°o)to the parties of the First 
> i y per cent (50^ ;6 ; to the paPt i es of the Second part. 

This Stock to 


be divided between the Pield and Edison 
Interest, shall be deposited with a Banking Coup any, and placed 
under the charge of a Special Committee of three, one named by the 
Field interest, one by the Edison interest, and a third to be named 
by these two; and none or the said stock shall be sold, pledged 
or used, except under the direction of this Special Committee. 

This Committee shall give to each owner of the stock a receipt 
specifying the number or his shares, and whenever he wishes to sell 
the same or any part thereof, he shall give notice to the Commit¬ 
tee and they shall sell it and give him the proceeds ir the price 
to be obtained be such as they think it right to take, having 
regard to the interests conaemed, but not below the price at which 
he may limit it. Wien either interest desires to sell, the other 
shall be notified, and shall be at liberty to contribute one hair 
or less or the amount to be sold at the same time and price, and 
the proceeds shall be divided pro rata. 

At such time as the Field and Edison interest may dis¬ 
solve the Committee, which must be within two years of the date 
hereof, the stock not sold and belonging to each owner shall be 
returned to him. 

It is further agreed, that should the parties hereto, 
consent to forego the formation of a Corporation as herein provided 
a sale to the Elavated Railroad Companies of the rights to use the 
Patents and inventions may be made outright, and the proceeds apply 
as the stock of a Company is to be applied. 

W 1 T N E S S w H E, R. B 0 F the parties heret 
have hereunto set their hands and seals this Twentieth day or 
April, 1883. 

Signed, Sealed and De¬ 
livered in the presence or 
as to S. D. Field and 
S. 0. Reed. {Signed} 

Edi’^-P., fjowell 
Chas. Edgar Mills. 

Stephen D. Field. 
Simeon 0. Reed. 

T. A. E. 

S. B. E. 

E. E. Zi. Go. by 
S. B. E. Pt. 

T. A. Edi! 

The Edison Electric Light Company 1 

65 Fifth Avenue 

New York— 

.-A b r i l...23rd.., 8 tf» 


T. A. Edison, Esq, • 


Dear Sir 

Enclosed please find copies of three papers to be 
considered at a Meeting of the Executive Company of the Light Com¬ 
pany to be called tomorrow. The papers are (1) Certificate of 
Incorporation of Electric Railway' Compny of the United States, 

(2) Agreement between Field, Edison and others regarding the Gen¬ 
eral Company; (3) Agreement between Field, Edison and others 

regarding the Mew York company.. . . 

Regarding the Certificated; Incorporation, I am not 
quite satisfied with having our interest supply four of the names 
of the incorporators.' I will state my reasons at the mooting 

Regarding the agreement for the General Company, it 
suits me pretty weel. I have spent a good deal of time on it, 
and have required Mr. Davit!':Dudley Field to redraw" the contract 
several times, in order to get it to suit me. So far as I am 
concerned, I am quite well satisfied with it as it now stands. 

Regarding the agreement for the New York City Company, 

I am also satisfied with that. 

It will be bocossary for our Company to designate the 
' four Directors who will .Represent;.it in the BoardsoAdirection of 

: '*S 



Thomas A. Edison, Esq., 

05 Fifth Ave. 


Doar Sirt- 

I am thia morning in receipt of the ’following night no 13- 
sagos which will doubtless interest you. Vj- • 

Chicago, Juno 5, 1883. 

“Rah oar empty at one P. U. Could have carried passon- 
“gors but dosirod carry Commissioners first, Hade thorn pay faro 
" “to-night. Hr. Adtuns starting train. Evorything all right.* 

(Signed) Prank U, Rao. 

(Company*a Electrician in charge.) 



Chicago, June 5, 18C3. 

“We made satisfactory paying trips to-night. 
“Road in entire order. Shall camraonce regular running tomorrow.* 

" (Signod) J. McGregor Adams. 

(Conan* r 4 Treasurer of Nat. Exposition Railway Appliances. ) 

Comment is unnecessary. 

I also bog to hand you copy of tho 
containing an article on tho Electric R‘way; 
herewith a pass thereon, which please accept 
of tho Commissioners. 



Chicago “Inter-Ocoan* 
and also enclose 
with the compliments 

Very truly 

h 0 A#' 

’leni<0^^er.r/M^^ §Swurr 

• ‘ ^ .AM -3 

^-X dinufrA 


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• :.i 




Opinion of Mr. Eaton as to v4 10 is entitled to past 
and future Inventions, prepared June 11th, 1890. 


(1) The first disposition made by Mr. Edison of 

his electric light and power inventions in Great Britain 
and Ireland, was his agreement of December 31, 1878, with 
Messrs. Drexel, Morgan & Co. and Messrs. Eabbri and Lowrey. 
That agreement disposed of certain of his inventions and 
patents relating to electricity for the "uses of illumina¬ 
tion, power and heating", and will be fully discussed in 
this opinion. .. , 

(Note:- A list of all the contracts and other docu¬ 
ments relating to this subject, so far as I know, is annex¬ 
ed at the end of this opinion, arranged chronologically). 

(2) Eor how long a period was Mr. Edison bound by 
the above agreement to turn over his said inventions? My 
answer is that the agreement of December 31, 1878, together 
with the supplemental instrument of December 31,-1881, 
bound him as follows: 

(a) To turn over to Messrs. Pabbri and Lowrey, 
Trustees, all inventions and improvements made dur¬ 
ing five years, i.e. prior to January 1, 1884. 

(See See. 3 of said agreement). 

(b) To constitute Drexel, Morgan & Co., his 

attorneys in fact, to convey to all purchasers of 
inventions covered by the aforesaid five year period, 
«a like interest* in all future inventions as afore¬ 
said, made between the end of the said five year , 
period and the end of seventeen yearB from December 
31 1878, the date of the said agreement, i.e. 

Deoember 31, 1895. (See Sec. 7.) 

(3) What disposition did the said Trustees, MesBrB. 

Eabbri and Lowrey, and the said attorneys in fact, Messrs. 

Drexelj Morgan & Co., make of the said patents and inven- 

tl0nS *Thef entered, jointly with Mr. Edison* into the 

Bouverie agreement of February 18, 1882, for the formation 




of the English Company. Under that agreement the said 
English Company acquired the following patents and inven¬ 
tions of Mr. Edison: 

(a) All patents already taken out by him or in 
his behalf in relation to the application of elec¬ 
tricity or magnetism as a lighting, heating and mo¬ 
tive agent. (See Sec. 8 of Bouverie agreement.) 

(b) All extensions of the said patents, with¬ 
out further payment. (See Sec. 9.) 

(o) All.improvements made by Edison "upon or 
"connected with the said inventions so far as said 
"extensions and improvements may relate to the ap- 
■plication of electricity or magnetism as lighting, 
•heating and motive agent." (See Sec. 9.) 

(d) The Bouverie agreement further provides 
that after making "any such improvements", and after 
taking out patents for them, Mr. Edison shall "with 
all reasonable speed" inform the said English Com¬ 
pany thereof, and of the expense both of his experi¬ 
ments and of obtaining patents, and the Company 
shall then have three months to elect whether to ac¬ 
quire "the improvements referred to in such notice." 
If they do not elect to take, their rights cease. 

If they do elect to take, they shall pay to Mr. Edi¬ 
son his aforesaid expenses in experiments, with 100 
per cent, added, without reference to his compensa¬ 
tion from other souraes, and shall also pay him the 
amount of all expenses and fees in obtaining and 
keeping up such letters patent. 

(e) Clearly this Bouverie agreement covered 
electric railway inventions (See (5) below). More¬ 
over, it covered all of Mr. Edison 1 s Baid "improve¬ 
ments" made at any time in the future, without lim¬ 
it. In this last regard, this agreement binds him 
longer than the aforesaid Drexel-Morgan agreement of 
December 31, 1878, which bound him only for seven¬ 
teen years, December 31, 1895. 

(Note. It should be observed that as regards 
the future, Mr. Edison agreed to turn over his "im¬ 
provements". The question arises whether this in¬ 
cludes all sorts of new inventions relating to 
lighting, heating and motive agent. A variety of 
words seem to have been used when speaking of im¬ 
provements or inventions. For instance, words in 
the said Drexel-Morgan agreement are "studies and 
experiments for making other inventions* (See first 
recital, p. 1.); also "any invention relating to 
the general subject matter". (See Sec. 1)} also 
"inventions or improvements" (See Sec. 3); also 
"inventions" (See Sec. 7); whereas the word in the 
Bouverie agreement is always "improvements"; also 
•inventions, improvements, devices and letters pat - 
ent contemplated" (See Power of Attorney of March 1, 
1881, to D. M. & Co.). Were all these words in- 


tended to be used synonymously ? I think they 

(4) Did the English Company acquire by the Bouverie 
agreement everything which Messrs. Drexel, Morgan & Co. et 
al. had acquired by their agreement of December 31, 1878; 
and have the last named parties any existing rights to-day 
under their said agreement? 

What Drexel, Morgan & Co. acquired,,is mentioned 
herein in section (2) above. It was, first, the Edison 
inventions and improvements for illumination, power and 
heating, made prior to January 1, 1884, and, second, the 
right to give to other parties, i.e., for instance, the 
said English Company, “a like interest" in all similar fu¬ 
ture Edison inventions till January 1, 1896. I have no - 
doubt that as regards the said first item, i.e. inventions 
made prior to January 1, 1884, the English Company acquired 
them. As regards the second item, i.e. the Baid "like 
interest", my opinion is that it was superseded and virtu¬ 
ally annulled, except as stated below in Sec. (5),by the • 
Bouverie agreement. That agreement, I should mention, v/as 
duly "ratified and adopted" by the English Company, as ap¬ 
pears by Sec. 99. of its Articles of Association. 

(3) Have Messrs. Drexel, Morgan & Co. any existing 
rightB to-day under their agreement of Dec enber 31, 1878? 

In my judgment thoy have not, except as to electric rail¬ 
ways, as stated below in the next section hereof. 

. . J.J. any, nave mcbsib . urexej., MOr- 

sociates, to-day, as to Mr. Edison's rajl- 
In reply I submit the following as my 

(6) What 
|-gan & Co. and as 
way inventions? ■ 

(a) Inasmuch as the Bouverie agreement in- 
>cluded electric railways, i.e. every electric "mo¬ 
tive agent", there is no doubt, as already stated,- 
that the English Company was entitled to past and 
all future inventions, pursuant to its privilege of 
election mentioned above in (d) of Sec. (3). 

(b) But Sec. 15 of the Bouverie agreement hae 
this important provision, to wit, that as regards - 
all patents which the English Company elect to take 
as aforesaid, they shall grant to Mr. Edison, or hie 
nominees, free and exclusive lioenses to use the 
same and "any improvements.thereof" for "locomotion 
only on railways, or tramways or on common roads". 

waa * n faot afterwards granted, namely, 
^ ^ ^ November 15, 1883, between the 

English Company, Mr. Edison and Messrs. Eabbri and 
the .? ast named Parties being designated 
therein as the sa id "nominees. » 

(c) The important question now arises, for 
whose benefit did the B e nominees take title under 

sras-tJlra-j; a. - 

agr sement of Decanber 31, 1878, or for whom? Who 
are the beneficiaries under the trust assumed by 
Messrs. Fabbri and Lowrey, the two "nominees as. 
aibresaid? I cannot answer this question with cer¬ 
tainty, but I shall discusp it below. 

(d) To begin, I am surprised not to find any 
declaration by Messrs. Fabbri and Lowrey, nominees, 
'declaring for whose benefit they took the aforesaid 

free and exclusive licenses for locomotion. Mr. 
Edison has no copy of any such declaration, nor has 
Mr. Coster, and I am told that probably none was 
ever made. If such a document exists it would 
probably solve this question. But not being able 
to find any, I must draw my own conclusions from the 
documents beft re me. 

(e) As regards all electric railway inven¬ 
tions and improvanents made by Mr. Edison prior to 
January 1, 1884, the same being covered by the agree¬ 
ment of December 31, 1878, it seems to me that it 
must have been intended that the alb resaid licsiseB 
to Fabbri and Lowrey, nominees, from the English 
Company, were for the benefit of the parties to that 
agreement, just as if electric railway rights had 
never been parted with by those parties. Doubtless 
the plan was when the Bouverie agreement was made 
and the English Company was about to be fonned, to 
give to that Comp may all the uses of the various 
patents and inventions save and except the uses for 
locomotion purposes. One way to carry out this 
plan, as regards patents usable for both locomotion 
and lighting, was for Messrs. Fabbri and Lowrey, 
Trustees under the Drexel-Morgan agreement, to re¬ 
tain title to the patents-but to grant licaises 
thereunder to the English Company for the uses and 
purposes cantenplat ed. Another way was to assign 
the patents to the English Company, and to then take 
back from them free and exclusive licenses for loco¬ 
motion. Naturally this last way was adopted, and • 
Messrs. Fabbri and Lowrey who had parted with title 
for all usob in their capacity as trustees, received 
back a restricted title for locomotion purposes only 
in their capacity as nominees. I must assure there 
was some good reason other than an intended change 
of interests, why these gentlemen were called Trus¬ 
tees in the one case and Nominees in the other. 
However, that is a trifling matter. Whatever they 
are called, it seems to me that the intention must 

therefore, of the opinion that Messrs. Drexel, Mor¬ 
gan & Co. and associates, have the same interest in 
Mr. Edison's eleotric railway inventions made prior 
to January 1, 1884, as if Messrs. Fabbri and Lowrey, 
Trustees under the original agreement, had never 
ceased to hold title to said inventions. 

(f) Assuming then that Messrs. Drexel, Morgan 
* Company and asBOoiateB have the interest mentioned 
above, can Mr. Edison fairly claim that it has been 
forfeited for anything which they have either done 
or omitted to do ! 

All grounds of forfeiture aro set forth in the 
said agreement of December 31, 1878. The second 
section thereof provides that if Drexel, Morgan & 
Company fail to dispose of "the principal or con¬ 
trolling invention", that is to Bay the certain ap¬ 
plication for a British patent filed at London on or 
about the day of October, 1878, before July 1, 

1882 (extended by the agreement of March 1, 1881, to 
January 1, 1886), Mr. Edison may require his patents 
to be reconveyed to him. ThiB ground of forfeiture 
or reconveyance, however, was defeated by the Bou- 
verie agreement of February, 1882, which did in fact 
dispose of the Baid controlling invention. 

The third section of the said agreement of 
December 31, 1878, provides that if Drexel, Morgan 
& Company fail or refuse to advance the sums requi¬ 
site to obtain Letters Patent, Mr. Edison may by 
written notice served on them, require his patents 
to be reconvoyed to himself. Evidently, this re¬ 
lates only to inventions made prior to January 1, 
1884. If Drexel, Morgan & Company have failed or 
refused to advance the said sums, and if Mr. Edison 
has given the said notice, it seems to me that the 
electric railway patents now in question covering 
inventions made prior to January 1, 1884, should 
fairly be reconveyed to Mr. Edison, as regards the 
specific patentB in question in each case. TOiether 
in fact, there was a default of this kind, I do not 
know, but I assume there was not. 

(g) It may be said that under a reasonable 
construction of the second section of the said 
agreement of December 31, 1878, Messrs. Drexel, 
Morgan & Company and Messrs. Fabbri and Lowrey, 
Trustees or nominees, should now consent to turn' 
over to Mr. Edison all electric railway licenses se¬ 
cured frcm the English Company, together with all 
rights so far as eleotric railway inventions are 
concerned touching all inventions made by Mr. Edison 
prior to and since January 1, 1884, beoause Messrs. 
Drexel, Morgan & Company have not yet made any dis¬ 
position of the said inventions so far as electric 
railways are concerned, and have not contributed to 
the expense of experiments and patents. Have they 


not, therefore, fairly forfeited their rights by in¬ 
action ? 

In answering this question, we must remember 
that under the Bouverie agreement the parties to be 
dealt with by Mr. Edison touching expenses for ex¬ 
periments and patents, were the English Company, and 
not Messrs. Drexel, Morgan & Company. If Mr. Edi¬ 
son has asked the English Company to pay these ex¬ 
penses, and if they have refused to do so, it may 
fairly be asked what were his duties to Drexel, Mor¬ 
gan & Oompany under those circumstances ? Unfor¬ 
tunately, I find nothing in any of the agreements 
providing for this emergency. Indeed, I would not 
undertake to foretell what the decision of a Court 
would be on this and kindred points if this matter 
were to end in a lawsuit. In my mind, it presents 
a question for amicable adjustment between the parties. 

■ (h) Suppose Mr. Edison were now to make some 
new inventions applicable to eleotrio railways, who 
would own them, in view of the opinions I have ex¬ 
pressed ? 

I think that if these inventions were covered 
by the Bouverie agreement recited above in section 
(4) of this opinion, they would go to the English 
Oompany in the first instance, if that company 
elected to pay for the experiments and patents, and 
that the said company would be obliged to grant an 
exclusive license, under the license agreement of 
November 15, 1883, mentioned above, to Messrs. Fab- 
bri and lowrey as nominees. 

But suppose the English Company eleoted not to 
pay for the experiments and patents, who then would 
own these inventions for Great Britain ? ThiB is 
a diffioult question to answer, but having studied 
all these agreements carefully, and having tried to 
discover the real intent lying behind them, I think 
that these new inventions of Mr. Edison for electric 
railways, would in the foregoing emergency belong to 
Messrs. Fabbri and Lowrey, as nominees, so far as 
Great Britain is concerned, the Bame to be held by 
them for the benefit of the respective parties to 
the fundamental Drexel-Morgan agreement of December 
31, 1878. 

It may be asked, would Messrs. Fabbri and 
lowrey pay the expenses of experiments and patents 
as to these new inventions ? I find nothing in the 
agreements which supplies an answer to this ques¬ 
tion, but it seems to me that the safe course for 
Mr. Edison to pursue, would be to notify the said 
nominees and Messrs. Drexel, Morgan & Company, that 
unless the English Company paid for experiments and 
patents as required by the Bouverie agreement, he 
would expect them to pay for the same, and in de¬ 
fault thereof, after giving reasonable notice, he 

would treat the said inventions as his own property. 

If any of the new electric railway inventions now in 
question are not covered by the Bouverie agreement, 
that is to say, if the English Company has no claim 
upon them, 1 think that even then the proper course 
for Mr. Edison to pursue is to give reasonable no¬ 
tice. to Messrs. Drexel, Morgan & Company and asso¬ 
ciates, that unless they pay for the experiments and 
patents, he shall treat them as his own property. 

True, I find nothing in any agreement which requires 
Messrs. Drexel, Morgan & Company to pay for the 
aforesaid experiments, nevertheless it iB certainly 
just that if Mr. Edison puts hiB time into making 
the experiments for the benefit of his old asso¬ 
ciates, they should pay for them, at least to a 
reasonable extent. 

The difficulty in expressing an opinion on 
these questions, is, that vhile they are not actual¬ 
ly covered by the agreements, they are nevertheless 
probably covered by what was intended, and by what 
the parties had in mind when the agreements were 
made. In such oases X think that the best way is 
for the parties themselves to get together and come 
to an amicable adjustment, for X am sure that these 
questions cannot be answered with certainty by means 
of the agreements themselves. 

To sum up, and to reply more definitely to the 
question asked above, viz! what rights, if any, 
have Messrs. Drexel,'Morgan & Company and associates, 
today, touching Mr. Edison’s railway inventions as 
regards Great Britain and Ireland, I reply that with 
reference to the license granted to Messrs. Eabbri 
and Lowrey, as Nominees, by the license of November 
15, 1883, I think that it should be treated as cov¬ 
ered by the Drexel-Morgan agreement of December 31, 
1878; and that with reference to subsequent elec¬ 
tric railway inventions, as well aB to any which Mr. 
Edison may hereafter make, they also should be con¬ 
sidered as oovered by the said agreement of December 
31, 1878. I further think that the various and im¬ 
portant points yet requiring solution, aB above 
stated, should be settled by mutual adjustment and 
consent by and between the parties to that agreement, 
in a spirit of fair dealing to all concerned. I 
regret that I cannot give a more satisfactory reply, 
but in view of the absence of provisions in the va¬ 
rious contracts covering matters now under discus¬ 
sion, this is the best answer I have to make. 



(7) Sweden and Norway are covered by a set of 
agreements dated March X, 1881, made between Mr. Edison, 
Messrs. Drexel, Morgan & Company and Messrs. Eabbri and 
lowray, as Trustees. This set of agreements is substan¬ 
tially the same as those referred to above relating to 
Great Britain and Ireland, viz: the agreement of December 
31, 1878, and the set of agreements also of March 1, 1881. 

These agreements for Sweden and Norway cover illum¬ 
ination, power and heating, and authorize Messrs. Drexel, 
Morgan & Oompany to dispose of all inventions or improve¬ 
ments made by Mr. Edisojjt prior to March 1, 1886, and to 
grant a like interest in all subsequent inventions made by 
him for seventeen years, that is to say, prior to March 1, 
1898. The proceeds are to be divided equally between Mr. 
Edison and Messrs. Drexel, Morgan & Company. 

My cornnents made above as regards eleotrio railway 
inventions in Great Britain and Ireland, apply with like 
force to this set of agreements for Norway and Sweden, I 
believe that Messrs. Drexel, Morgan & Company have never 
parted with any rights of any sort under these agreements, 

J \1&. ♦ 


IXST of all agreements,&c., which Mr. Baton is able to find) 
relating to Mr. Edison’s Electric Railway Patents and j 
Inventions for Europe, with comnents on same, prepared | 
to accompany Mr. Eaton's Opinion of June 11, 1890. 

(1) December 31, 1878. ThiB is the date of the 
fundamental agreement, the parties thereto being Mr. Edison, 
'Messrs. Drexel, Morgan & Company, and Messrs. Pabbri and 
I Lowrey, as Trustees. The agreement covers patents granted] 
by the United Kingdom of Great Britain and Ireland, that is! 
to say, "Great Britain and Ireland, the Channel Islands, 

! the Isle of Man, and such other portions of the British 
Dominions as are included in such Letters Patent". The 
i subject matter of the patents covered by the agreement are ; 
inventions relating to electricity for the "uses of ilium- ] 
'ination, power and heating". Messrs. Drexel, Morgan & 

: Company agree to pay for the expense of talcing out patents, ; 
also to pay for any exhibitions they might see fit to make, j 
and to assume the financial management as to disposing of ] 
patent rights. The patents were to be transferred to 
Messrs. Pabbri and Lowrey, as Trustees, subject to the 

The agreement further provides in its second section,] 

; that if Messrs. Drexel, Morgan & Company fail to dispose of] 

!: "the controlling invention" before July 1, 1882, Mr. Edison; 
i can within six months thereafter require them to reoonvey j 
to him the patents subject to then outstanding licenses or 
i assignments made by them, if any. 

■I (Note:- Apparently the various documents which 

were to be executed jointly with this agreement of December 
! 31, 1878, that is to say Powers of Attorney and Covenants 
li by Trustees, were not prepared and executed until more than 
|i two years after the date of the agreement, viz: March 1, 

: 1881. And I find that in the Trust Agreement of that 
I data, viz: March 1, 1881, from Mr. Edison to Messrs. 

Pabbri and Lowrey, the following: "and in ease Drexel, 

i "Morgan & Company shall have failed to dispose of the prin- 
ij "oipal (sic) or controlling invention referred to in the 

■ "second clause of said agreement of December 31, 1878, be- 
"fore January 1, 1886". Then upon demand in writing by 
Mr. Edison served on Messrs. Drexel, Morgan & Company with- 
in six months after January 1, 1886, the Trustees must re- 
I convey to Mr. Edison all the patents and inventions assign-j 

ii ed to them, but subjeot to outstanding licenses, &o. How j 
|| this period happened to be changed frcm July 1, 1882, to j 
!| January 1, 1886, I do not know, but there iB no doubt that j 

|!tha change was made and that it beoame binding on Mr. 

By this agreement of December 31, 1878, Mr. BdiBon 
further agreed to assign to the said Trustees all inven¬ 
tions made prior to January 1, 1884, also to constitute 
Messrs. Drexel, Morgan & Company his Attorneys in 
i convey to all purchasers of inventions assignable prior to 
January 1, 1884, as aforesaid "a like interest in all fu¬ 
ture inventions" after that date. 

(Note:- Annexed to this agreement of December 31 , 
1878, is a list of agreements to be drawn as supplemental 
to the said agreement itself, and in that list reference is 
made to the above mentioned Power of Attorney to Messrs. 
Drexel, Morgan & Company, to wit: "A special power by 

"Edison to Drexel, Morgan & Company to sell all his inter¬ 
est in existing and future inventions of the five year 
■period, and letters Patent to be granted thereon, and to 
"agree with the purchasers of any invention that they are 
! "to have the title to all the like inventions made within 
c "seventeen years from date of foregoing agreement, subject, ; 
: "however, as to inventions subsequent to July, 1884, to a 
! "compensation to be fixed by arbitrators." I find that 
: such a power was actually given by Mr. Edison to Messrs. j 

Drexel, Morgan & Company under date of March 1, 1881, and j 

that it covers the aforesaid inventions made before January 1 
1, 1884, and "a like title or interest or right* to all 
further inventions made between January 1, 1884, and the 
: end of seventeen years from December 31, 1878, that is to 
say, December 31, 1895, the latter being subject to oompen- ; 
sation, payable to Mr. Edison, to be fixed either mutually ! 
or by arbitration.) 

The third section of this agreement of December 31, I 
1878, provides that if Messrs. Drexel, Morgan & Company j 
"shall fail or refuse to advance the sums requisite to ob- j 
ji "tain letters patent for any invention, it shall be at the 
ij "option of Edison, within a time specified in a notice in 
j! "writing to be served by him upon Drexel, Morgan & Company 
ij "and each of the Trustees (and which shall not be Issb than 
j: "two nor more than three months) to require a reconveyance 
Ij "by the’ Trustees to him of all right, title and interest 
|| "remaining in them, x x x and not sold or disposed of 
Ij "or agreed to be, in good faith, by Drexel, Morgan & Com- 
ji "pauy, and after the giving of any such notice the interest 
j! "°£ Drexel, Morgan & Company in suoh invention or the pro- 
i; "oeeds thereof, shall cease." The said section then goes 
j: on to prodice that Messrs. Drexel, Morgan & Company may, 
j: upon receiving the aforesaid noticd, require an arbitration 
Ij upon the question whether their refusal to make advances 
was justified, and if the arbitrators decide that it was 
j: the said notice by Edison shall be held void. The fourth 
ij section provides that no cancellation of interest as afore- 
ji said shall impair any obligations then existing touching 

purchasers or intending purchasers. 

The second section of the said agreement of December 
31, 1878, gave Mr. Edison the right, as already stated 
above, to demand a reconveyance to him in case Messrs. 
Drexel, Morgan & Company failed to dispose of "the princi¬ 
pal or controlling invention* within a certain period, 
which period appears to have been fixed by the supplemental 
trust agreement of March 1, 1881, already mentioned above, 
as January 1, 1886. I assume that this provision is of no 
effect, because Messrs. Drexel, Morgan & Company did in 
fact dispose of the said invention when they made the 
agreement of February 18, 1882, knovm as the "Bouverie 
Agreement", pursuant to which there was subsequently formed 
the company known as "The Edison Electric light Company, 

(2) Maroh 29, 1879. I find a letter of this date 
from Mr. lowrey to Messrs. Drexel, Morgan & Company. In 
it he refers to a letter from Mr. Edison to himself promis¬ 
ing an interest to Mr. Lowrey in all of Edison's English 
patents.. I have no copy of that letter from Mr. Edison 
to Mr. lowrey. This letter of March 29, goeB on to say 
that the proceeds or profits of English patents, are to be 
divided equally between Mr. Edison and Messrs. Drexel, 
Morgan & Company, and that the interest thUB secured to 
Messrs. Drexel, Morgan & Company shall belong two-thirds to 
them and one-third to Mr. Lowrey. All comnunications made 
to London or Paris Bankers are to be chargeable against the 
Drexel, Morgan & Company interest alone, but all other 
charges are to be charged against them and Mr. Lowrey joint¬ 
ly. The letter further Btates that the same understanding 
exists as to any other foreign patents concerning which 
similar arrangements may be made between Mr. Edison and 
Messrs. Drexel, Morgan & Company. The letter concludes by 
asking Messrs. Drexel, Morgan & Company to reply to Mr. 
Lowrey and to state whether he has correctly set forth the 
arrangement between them. 

(3) June 9, 1879. Apparently an agreement was 
made on this date between Mr. Edison and Colonel Gouraud, 

|! whereby the latter was given a one-tenth interest in all j 
: that the former got under any letters patent, of the United j 
Kingdom of Great Britain and Ireland, so far aB relates to I 
patents already granted or thereafter granted to the said 
Edison for a period of five years, that is to say until 
June 9, 1884. The said interest of Gouraud is to be sub¬ 
ject to all concessions and payments whioh Edison may have 
to make to others. The said agreement further releases 
Edison fran all prior claim of Gouraud touohing any and all 
ji of the inventions or letters patent therein referred to. 

: l I have no copy of this agreement, but it is recited: at 
length in the agreement mentioned next below in this letter, 

dated July 21, 1879. 

(4) July 21, 1879. This is an agreement between 
Messrs. Drexel, Morgan & Company and Mr. Edison, and after 
reoiting the aforesaid agreement of June 9, 1879, between 
Edison and Gouraud, goes on very briefly to state that 
Messrs. Drexel, Morgan & Company shall pay to Mr. Edison 
one-half of all sums which he may pay to Gouraud in accord¬ 
ance with the said agreement of June 9, 1879. 

(5) February 18, 1881. Mr. Edison has a copy of 
an assignment of this date, whereby for $30,000., the law 
firm of Porter, Lowrey, Soren and Stone, assigned to Mr. J. 
Hood Wright an undivided one-tenth part of the whole inter¬ 
est originally owned by Mr. lowrey in the Edison patents 
for Great Britain and Sweden and Norway. Attached to the 
assignment is a letter from Mr. lowrey to Messrs. Drexel, 
Morgan & Company dated February 1, 1881, and a letter from 
him to Mr. Wright, of the same date. But these letters 
merely lead up to the said assignment itself of February 
18, 1881. 

(8) March 1, 1881. As I have already stated above, 
the agreement of December 31, 1878, mentioned at length at 
the beginning of this letter, provided for the concurrent 
execution and delivery of four supplemental instruments 
which are described on the last sheet of the said agree¬ 
ment. These four instruments do not appear to'have been 
executed until March 1, 1881, whioh date they bear. They 
are as follows: 

(a) A special power by Mr. Edison to Messrs. Drexel, 
Morgan & Company, appointing them his irrevocable Attorneys 
to dispose of his patents for Great Britain and Ireland and 
such other portions of the British Dominions as may be cov¬ 
ered by them, being such inventions as are described in the! 
agreement of December 31, 1878, whioh he might make before ! 

! : January 1, 1884, together with all further inventions whioh I 
he might make between that date and December 31, 1895, the j 
j price to be satisfactory to Mr. Edison, or to be fixed by i 
j| arbitration. ■ 

(b) Trust Agreement of March 1, 1881, fran Mr. Edi-! 
son to Messrs. Fflbbri and lowrey. This recites that the ! 
patents mentioned in the agreement wore assigned pursuant 

to the foregoing agreement of December 31, 1878. 

(c) An instrument containing covenant by Fabbri and! 
Lowrey, as Trustees, declaring that they hold the Edison ! 

:i patent subject to the foregoing agreenent of December 31, I 
j! 1878. 


(a) A special power from Mr. Edison to Messrs. Fab- 
bri and lowrey, being of the same date as all of the fore¬ 
going three instruments, that is to say, March 1, 1881, 
constituting them his irrevocable Attorneys in fact to sell 
his inventions to such parties as Messrs. Drexel, Morgan & 
Company might appoint, pursuant to the laBt clause of the 
third seotion of the aforesaid agreement of December 31, 
1878, with power of substitution. 

Note:- The effect of the foregoing four instruments 
waB merely to supplement and carry out the provisions of 
the foregoing agreement of December 31, 1878. 

(7) May 31, 1881. The next document which I find, 
chronologically speaking, is one of this date, made between 
Messrs. Drexel, Morgan & Company, Mr. Edison and Mr. John¬ 
son. It provides that Mr. Johnson shall take charge of 
the then proposed exhibition at London, and that he shall 
be paid a salary of $500. a month, and shall further re¬ 
ceive five per centum of the net amount received touching 
the patents or inventions so far as Oreat Britain and Ire¬ 
land are concerned. But if the said five per centum 
amounts to $100,000., it shall thereafter be reduced to two 
and one-half per centum. 


(8) February 18, 1882. This is the Bouverie 
Agreement, and is executed by him, Mr. Edison, Messrs. 
Drexel, Morgan & Company, and Fabbri and lowrey. It pro¬ 
vides for the formation of the English Company, and for the 
assignment thereto of the several patents specified in an¬ 
nexed schedule, being all of the patents taken out by Edi¬ 
son or in his behalf relating to eleotric light, heat and 
\ power. 

Seotion Nine of this agreement then goes on to pro¬ 
vide that the said English Company shall have, vdthout fur-; 
ther payment, not only all extensions of the patents men- j 
tioned in the aforesaid schedule, but also all improvements! 
■ which may be made by Mr. Edison in connection with the saidj 
; inventions so far as they relate to "lighting, heating, and : 

motive agent". But the said aompany was to pay to Mr. j 
|| Edison all expenses leading up to such improvements, after 
patents for Great Britain are taken out, with one hundred j 
per centum added, without reference to compensation receiv¬ 
ed by him from other persons. Mr. Edison was further to j 
recei ve from the company the amount of all expenses and ; 
fees necessary to obtain and keep up the said patents. 

The said seotion nine then goes on to Bay that as soon as 
Mr. Edison makes improvements and takes out patentB there- ; 
for ho shall inform the company of that fact and of the j 
l amount of expenses inourred in experiments and in obtaining 
and keeping up letters patent, and if the company shall i 
within three months after receipt of such notice elect to | 

acquire the improvement b, the amount payable to Mr. BdiBon ! 
shall in case of difference, be fixed by arbitration, but 
if the company does not within the said three monthB elect ! 
to aoquire the improvements, the company's rights thereto 
shall oease. 

Section Fifteen of the said agreement provides that 
immediately after the assignment of any patents-to the oom- 
pany, it shall grant to Mr. Edison or his nominees free and 
exclusive license to use the same or any improvements 
thereof for the purpose of locomotion on railways, on tram-; 
ways, or common roads, and for all other purposes except 
light, heat and power, otherwise than for the purpose of 
such locomotion. 

(Note:- The effect of this agreement upon the ques¬ 
tion under discussion in this letter will be considered by 
me further on, that is to say in Section Thirteen, when X 
discuss the license of November 15, 1883.) 

(9) March 1, 1882. Power of Attorney from Mr. 
Edison to MoBBrs. Pabbri and Wright relating to the dis¬ 
tribution of shares receivable under the foregoing agree¬ 
ment of February 18, 1882, and directing those parties to 
receive the Baid shares and to distribute them between 
Messrs. Drexel, Morgan & Company, Gouraud and Johnson. 

(10) March 15, 1882. This is the date of the Mem-i 
orandum and Articles of Association of The Edison Electric j 
light Company, Limited. I have before me a printed copy j 
of this dooument, belonging to Mr. Edison's files. Annex-! 
ed to it as a schedule, is a printed copy of the above men-| 
tioned agreement of February 18, 1882. 

This agreement of March 15, 1882, ratifies and 
adopts the aforesaid agreement of February 18, 1882, and 
states that the objects for which the said company is 
formed are to carry that agreement into effect, to acquire 
the patents then specified and to acquire additional pat¬ 
ents, &c. 

(11) April 6, 1882. Apparently an indenture bear¬ 
ing this date was executed by Mr. Edison, by Mr. B rewer, 
by Mr. Jensen, by Messrs. Drexel, Morgan & Company, and by 
Messrs. Fabbri and Lowrey, assigning to the aforesaid 
English Company the several patents specified in a sohedule 
annexed to the said indenture. X have no copy of this in¬ 
denture . i 


'■*£ * 

I l 

(12) November 15, 1883. Indenture between the 
Edison Electria Light Company, Limited, Mr. Edison, and 
Messrs. Fabbri and Lowrey. This instrument is the lioense 
; to use the British Patents for railway purposes, and is an 
important document in connection with the subject now under 
: disoussion. It opens by referring to the above mentioned 
Bouverie Agreement of February 18, 1882, wherein a lioense 
, of this sort is provided for. It then goes on to speak of 
the incorporation of the London Company on March 15, 1882. 

It then refers to the above mentioned indenture of April 6, 
1882. It then recites that Mr. Edison haB appointed 
Messrs. Fabbri and Lowrey to be the licensees touohing the 
; aforesaid railway license, and that the oompany has oon- 
: sented to grant to them the said lioense. 

After the foregoing reoitalB, the instrument goes on 
to give to the said Trustees, Fabbri and Lowrey, and their 
assigns, a full lioense to use all patents specified in the 
schedule annexed to the document, or any improvements 
thereof, for the purpose of locomotion and for all other 
purposes except light, heat and power otherwise than for 
such locomotion, during the term of said patents or any 
extension of them. 

The agreement goes on to provide that the company 
may disclaim, without the consent of the said Fabbri and 
Lowrey, except in the case of patents referring exclusively 
to locomotion, and may at any time permit "any of the said 
patents" to lapse, provided that the oompany shall give 
Edison three months notice of any intention to let a patent 
lapse; and shall at his request assign such patents to him 
or his nominees to the end that he may keep said patents 
alive if he wishes to. 

The license then gooB on to provide that whenever 
: the said company shall, under the agreement of February 18, 
i 1882, "become possessed of or entitled to any improvements 
| "made by Mr. Edison upon or connected with the said inven- j 
| "tions protected by said patents, the company shall forth- | 
"with cause such improvements to be communicated to the 
; "licensees, Fabbri and Lowrey, and they shall be entitled 
! "to use the same" under the license. 

| The agreement further provides that the licensees 

may sue infringers, if the company does not. Annexed to 
this license is a Schedule of Patents, and I find a lead- j 
pencil Mem. by Mr. Ooster to the effect that the Baid 
I Sohedule should also inolude No. 1,862 of April 18, 1882, 
and No. 1,022 of February 24, 1883.- 



(IS) April 8, 1884. X find among Mr. Edison's 
papers a Power of Attorney of this date from the Bentley- 
Knight Electric Railway Company, Mr. Lowrey, Mr. Fabbri and 
Mr. Edison, to Thomas James Montgomery, authorizing him to 
dispose of patent rights relating to locomotion. Apparent¬ 
ly this power was never executed. At any rate the copy be¬ 
fore me has no signatures. 

(14) February 7, 1885. I find a letter from Mr. 

R. N. Dyer to Mr. Coster, of this date, specifying the for¬ 
eign patents taken upon Mr. Edison's electric railway in¬ 

(15) March 25, 1880. X have before me an original 
letter of this date from Mr. Lowrey to Messrs. Drexel, Mor¬ 
gan & Company, stating that he has arranged for them to 
have sole control of Mr. Edison's inventions in Portugal, 

New Zealand, New South Wales, Queensland and Victoria. 
Messrs. Drexel, Morgan & Company are to bear all expenses, 
and net proceeds are to be divided sixty-five per centum to 
Mr. Edison and thirty-five per centum to Messrs. Drexel, 
Morgan & Company, and Mr. Lowrey to receive one-third of 
the said share to Messrs. Drexel, Morgan & Company. The 
title to inventions and patents is to be assigned to Mr. 
Fabbri and Mr. Lowrey, as Trustees, under trusts similar 

to those already arranged for England. 

On the back of this original letter, which is 
lent us by Mr. Coster, is this lead pencil mem. in his hand- 
writing,, to wit: "No contracts seem to have been prepared 
for these". 

(16) March 25, 1880. I have another original lat¬ 
ter of this date from Mr. Lowrey to Messrs. Drexel, Morgan 
& Company. It refers to Sweden and Norway, and states that 
Mr. Lowrey is to have one-third of the one-half interest in 
net proceeds accruing to Messrs. Drexel, Morgan & Company 
touching Sweden and Norway. Mr. Lowrey further states 
that his interest is for account of his firm of Porter, 
Lowrey, Soren and Stone. 

(17) December, 1880. Mr. Coster lends us the fol¬ 
lowing letters tied together in one package, relating to the 
countries named below. 

(a) Copy of letter of December 14, 1880, from Mr. 
Lowrey to Mr. Edison, referring to a letter of March 25,1880 
from same to same,and asking Mr.Edison to confirm said let¬ 

(b) Copy of a letter from Mr. Edison to Mr. Lowrey 
dated December 15, 1880. This letter opens by referring to 
the aforesaid letter from Mr. Lowrey of March 25, 1880, in 
which he stated the arrangements made by him with Messrs. 
Drexel, Morgan & Company in respect to Portugal, New Zea¬ 
land, New South Wales, Queensland and Victoria, and with Mr. 
Navarro for Cuba, and with Mr. Fabbri and Chauncey for 



India. Mr. Edison’s letter then goes on to state that 
he confirms Mr. Lowrey’s said letter of March 25th. 

(c) December 16, 1880. Copy of letter from Mr. 
lowrey to Mr. Edison, referring to the aforesaid letter 

of the previous date from Mr. Edison to Mr. Lowrey. This 
letter relates only to the question of malting exhibitions 
in India &c., and is not important. 

(d) December 16, 1880. Original letter from Mr. 
Lowrey to Messrs. Drexel, Morgan & Company enclosing a 
copy of the foregoing correspondence relating to Portugal, 
New Zealand, New South Wales, Queensland and Victoria, 
and asking Messrs. Drexel, Morgan & Company to approve of 
his letter to Mr. Edison of December 16, 1880'. 

Note: As regards Portugal I find nothing to con¬ 

flict with the above mentioned lead pencil mem. of Mr. 
Coster, which was to the effect that no contracts seem 
to have been prepared, but as regards Sweden and Norway 
I find a set of agreements as specified below: 

(18) March 1, 1881. Agreement between Mr. Edison 
Messrs. Drexel, Morgan & Company, also Messrs. Fabbri and 
lowrey, as Trustees, relating to Sweden and Norway, and 
covering inventions relating to illumination, power, 
and heating. Messrs. Drexel, Morgan and Company agree to 
reimburse Mr. Edison for all sums theretofore paid by him 
on aocount of the applications for patents "not exceeding 
One Dollar" (this is the way it is written in Mr. Edison's 
copy of the original agreement signed by him), and to 
pay all further charges in securing future patents. 

The second section of this agreement provides for 
the transfer to Messrs. Fabbri and Lowrey, as Trustees, of 
all title to inventions already made. Those parties are 
to hold this title subject to the directions of Messrs. 
Drexel, Morgan & Company, and if the last named firm do 
not dispose of the inventions by March 1, 1884, they are 
then to be assigned back to Mr. Edison but subject to 
outstanding licenses. 

The third section contains an assignment by Mr. 
Edison to the Trustees of all his title for Sweden and 
Norway, for "..'other inventions or improvements" made prior 
to March 1, 1886. 

In the fifth section there is a provision that when¬ 
ever Messrs. Drexel, Morgan & Company fail or refuse to 
advance the sums requisite to obtain or defend Letters 
Patent for any invention, Mr. Edison may by written notice 
require the said Trustees to convey the title back to him. 

The seventh section contains an agreement by Mr. 
Edison to constitute Messrs, Drexel, Morgan & Company his 
attorneys in fact to dispose of, (where purchasers have 
already secured an interest in his patents) "a like in¬ 
terest" in all future inventions which may be made by him, 
or for which patents may be granted to him, subsequent to 
the termination of the period of five years above mentioned, 

at a price to be mutually agreed upon, or to be fixed by' 
arbitrators. . (This date is extended to March 1, 1898. 

See Sec. (21) below). 

In the case of all inventions for which Messrs. 

Drexel, Morgan & Company have advanced or paid the ex¬ 
penses as provided for in the first section of this agree¬ 
ment, the price realized by them from purchasers shall 
be divided equally between them and Mr. Edison. 

(Note. This agreement is substantially the same 
in its terms and provisions as the agreement of December 
31, 1878, relating to Great Britain and Ireland.) 

(19) March 1, 1881. Power of Attorney from Mr. 
Edison to Messrs. Eabbri and Lowrey, relating to Sweden 
and Norway and being one of the instruments provided for 
in the agreement last mentioned above. 

(20) March 1, 1881. Covenants by Messrs. Pabbri 
and Lowrey, Trustees, relating to Sweden and Norway, and 
being mother instrument provided for in the agreement 
mentioned above in Section (18). 

(21) March 1, 1881. Power of Attorney from Mr. 
Edison to Messrs. Drexel, Morgan & Company, relating to 
Sweden and Norway, and being still another instrument re¬ 
ferred to in the above mentioned agreement described in 
section (18). This power recites all inventions, dis¬ 
coveries, improvements or devices relating to "illimuna- 
tion, or power or. heading 1 *, and refers, in the first in¬ 
stance, to inventions;^ made before March 1, 1886. The 
power then goes on tcauthorize Messrs. Drexel, Morgan 

& Company to agree with the purchasers of any of Mr. 
Edison's inventions &c. made before March 1, 1886, that 
they shall have "like title or interests or rights® in 
all further inventions which he may make at any time be¬ 
tween March 1, 1886, and March 1, 1898. 

Scrapbook, Cat. 1135 

This scrapbook covers the period October-November 1881. Included among 
the clippings is a report of the annual meeting of the Edison Electric Light 
Company in New York City. The remaining clippings pertain to applications by 
various companies for permission to engage in the business of electric lighting in 
the United Kingdom. The book contains 144 numbered pages. 

Blank pages not filmed: 4-144. 

Wp Mr ) .) )' -!,r r 7 


Scrapbook, Cat. 1139 

This scrapbook covers the period November 1882-December 1884. It contains 
clippings relating to various international electrical exhibitions. Included are 
descriptions of both Edison's exhibits and those of his competitors at exhibitions in 
Munich (1882), Vienna (1883), Boston (1884), London (1884), and Philadelphia (1884). 
The inside front cover is inscribed "Electrical Exhibitions not yet Classified. Vol. 
I." The pages are unnumbered. Approximately 40 pages have been used. 

towing may bo deduced- 
md an energy of 

^AQI M | T8 i rOE | ‘ l i mQqTEmg? g." 


rj 8 21 ^ OInTk' S S<}° y‘ wn ^l^uSSll« « ^ 

^^^i If iI f II" [f; i l!^ y ^’h 

«“'rt£ raiStSSSStiftMlmr, >o muehL. cOtc 

p*£=i coplw, ^^^HoUIcnienU Chin* J 
uul |{e 0 , ii««Jll*n ltluidt. Thiele piper c. 

engine ering 

nnrtmont lift. boon ill tlw pohitinn of on j 
who, by ooino clmnn, bus ncquirod ft TO 
ovor ft powerful Bpirit, but nooiling tli 
of more potont Bpolls tlmn lio i« "“1™ 
U for its entire .abjection, liven ccinrtwitl 
to lest hi. Borvnnt Bboul.l Borne ‘liybroftk'. 
ngftiiiBt order, which do not curry tho 
Bovoreifin authority, l’nrlinment decide 
seaworthy fillips should ,,ot , b0 ,V onn . 

mutter. Tho only undoniablo test in 
7i is useless for tho occasion. If * ® h, P 
h0 and founders from stress of wcathor, 1 
*“ strength or inaunicicncy of equipment 
ror dispute ; and ovon if sho is never heard 
good vrim\ facie ovidenco that sho was 
Sj nn ini proper stato. Hut short of this it 
mt to lay down any rules which shall not 
fair criticism ns regards many crafts, it 
iority of tho shipowners aro honourable u 
in. anxious to deal honestly both by tbo n 
and tbo men who navigate their ships, s 
be not neglect any reasonable precaution 
.. safety. Hut a ship, liko a man, lias to ] 
hln and under that condition it ih miposs 
on should bo funiislicd after tbo manner of 
d M Majesty’s Navy, where tbo cost boa nol 
n an annual comparison with the earning! 
ro 1 severe as to prevent greedy, unscrupulo' 
running hazardous riskB would prol 
i«j, shipping a source of loss instead of a nr 
<nf. inatanco, and tboreforo tbo Board of 1 ra 
>re* hesitates to lay down any regulations, 
*{ a ’ to tbo discretion of their inspectors 
SS should detain a ship and when they slit 
to take action. 

Jjj' No doubt it was a wise precaution on 
’ tbo Hoard not to liampcr tbo rapid i 

S'ire mutSSSuiSr request*! to »d 
nsmhsjcnoUho Port OiBco^ Order; 

Hike for Publication and Advertl* 

EN OIHEEBIHQ U rcgUtcrcd for transmtatons ti 

stuidanl Vomn of Wreck Commissioners.” No wonde 
. Hackney, i». He., such ft state of affairs an immense am 
.. tation and vexation should have been 

t'l\il Ktiginccni, at and that tbo Hoard should bo hau 
ho foHowiinc iwiMir* fueling that their discretion was too la 
Aaaoclatc^^'Trott responsibility greater than they wer 
imarimi Cable* ami properly fulfilling, and hence they 
lih at 3 nin “On attempts which appear likely to extcii 
li Vacuo, i»>* J. w. tbo gravest causes of disasters at sea ii 

Z told that lie must settle that for bin; 

which Crowed tiiu only by seeing if bis ship is allowed to 
d 3rd, isss. ami it* C an judge whether or not it satisfies t 
lit tSftho 1 itanineScr officers. It is true tbo Hoard lias issue 
iniiH-Ttor-UcncnU of mate Tables of Freeboard," but tlics 
a, ill North Lincoln. to COIMm aml any measure of public resj 





il l%ll 

>-~-i m _i 


Scrapbook (Canvassing Reports) 

This scrapbook covers the period September-November 1884. It contains 
correspondence from Alfred O. Tate to Charles Batchelor relating to the 
canvassing of prospective towns in Michigan and Canada for the installation of 
central stations. Included are Battle Creek, Detroit, Grand Rapids, Lansing, 
Montreal, Ottawa, and Quebec City. The letters also discuss the local agent 
appointed by Tate for each locality as well as local economic conditions. The front 
cover is labeled "Tate." The spine is stamped "Invoice." The book contains 
approximately 35 pages, some of which are numbered, and an index. The pages 
have been cut out of the book. 

H) W^i 

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|pp <Ax(Xj&ZiC' ^uy 

_ Oen’l Agent. 

« C&cCj’^nJH: 


CHARLES BATCHELOR, Ggn'l Manager. ^ I 

Subject to your approval, 1 have appointed ;■ AddressjtjZ^^-S^-liU^fet 
as yourAgentJw t _✓_ ( Terms.^S^^O^ 


(REMARKS :... ■ . - - 

atALC/s&^r'&fj sc** 6**^ &s •Zc6rt"t?f 

/ScZZ^EfT. yCLf&vAtf : . ■ . ’. 

*zcsZ%a> £&*■ 

G?--& oj-i&^txsxa-' ^ zZZo acz^ , , 


State o/C<j^^LC^LAj^CLAyL/ : 

(G^J- ^ 

Subject to your 
as your Agent for ■ 

- | MameesrVMs& V l <& fXyt Affsj/ . 

/ Awe appointed | Addres fZJ^^^^^^^^^ Z^^ eK^,- 

<ZuMf ^^6<5 ^WS« ^5? X 

Ott^ocXj cft~£XJxs 

o_j/ (/ -uawaw/. _ ^KzciA^. 

^yf^T a/Zu^y ^yy?si6eLi ^5<^4. e?yif**>r^ 

'tjyuy •££ - /gy&y 

^ -msy s<_s /lcf^uC<l> 

..*« >cv- *■•"?-'* - w,yr v ~ t r . 


.. 9/^zl 


Subjecl to your approval, l have appointed • AddreesfZZZ^_j:^^iM& 

"A&ffor / Terme.a/'X 

is yo«j- Agent for 

...1. ^ Territory, 

// r/tf// 'REMARKS: 

^(Z^ytzL s&sfr ^n^- 

/ct&L^ sfcC^y/OlAP — AzCaiSad - _ 

^ Awz& 

CUU County ^L^'siate o f >- 

Edison Machine works^ . /*.?<#[ 

CHARLES BATCHELOR, Gen'l Manager ,, /^/\ ' ,0/^ 1^' 

AVa; We/ _L ^Ly, cX _.^.,yk23# 

Elear 'Bctsinesst^e^s ^^c ,. 

as ‘ tfr °7‘'' “” ■ ">•«“. ' 

Jy -^^v-co 

Si\y SL<9 

—'^'C yty(^JZ V 

fV Agent. ji*£ 


©ear Sir ; -- 

Subject to your approval, I have appointed ■ Address /*-f0 - _ 

" ^ ^ Terms. o/~T /3^....j£^^ . 

r^y, . 


jLtJLspL^-. ^I^CMaASx^JLs 

CS /^. _.j 

[ ^/aiwe,_6^Cd!!&.A_C-G^^^ j‘‘ 

County of State of Ik 


f Uamt f/Q?, Q< 

Subject to your approvalf'I'^have appointed ■ Address, ^ 

’.s yourJ^ent for \ . TermssJfZL^s. 

/.i^^rrrC’-^.>!w •Af,.*-’. 

• _l Territory, .jZaUefcij. - 

_ 'REMARKS .• 

(/by/.' (f#/<f_ /(fasCy~£bw 0^r2£vCC> 7zkJ%S - 

« f&O -4^0 ' 

I AtfCtsc/suf z&eriy erttaktirud 

V f& f^ZcA/CtcsC ^ZCj/^vU li^ea 


ay of _ L^^LZf ........state «/- 


CHARLES BATCHELOn, Gen-l Manager Hame^L.y\Al -.C^...^.^...L/Sr^L^l^l 

©ear 5«V ■ <Rusiness $\ ^2y t /tMf( A / \ 7) .. A 

SubjfSryryour approvalhave appointed. Address, _1^=^ 

as youf Agelhor f , . _ Terms._ 

I ^A/fe?V TVmtorr. ZZL=^= 

f&^kscA} '6^*^. 


stdSU IXmJ 


r ^mO. . _County of 



'Dear Sir; 

Subkaf to your approval, I have appointed 

^ 'KCtJn yi'XZJx o : 

£ZlZs (&£j - 

a^jT^Z~S<^€^Cc^i) &(U^t c~ys£ ^ 


CHARLES BATCHELOR, Gen’l Manager. C 6 (/. ^ 

Subject to ypur approval, I have appointed ■ Address. ^ 

/9 /'Syf/7/7 Terms. 

UK . Territory, 

-- • _ 'REMARKS: 

C JZ&. - 49*^QA^asC*r C^^/Ccj c^y^^Op • U 

_ County o 


CHARLgB BATCHELOR, Genn. Manage.,.- Jlame A D. < J . TVUHAAjj 

Dear Sir; f I _ (Business. Qt u£ j> yA<-> 

Subject tf your approval, 1 have appointed Address: Wir6(JjMbx Xt, 
asyou^A^for , 

^2^CnkAAA^ _ Territory . CL^=^. 

3. jjH KAHAAjjfaMAA^tfr ._ 


(73 ’ /, ™MA<RKS: . . 

O _ '^4c-kS7— ^Cp C^C.- 'l>' 

~^-As\A — - vX-H^^C^w-vv, 

VkXA- J 

Cit y otC^A / s£(t^U...County of .-JMate of 


CHARLES BATCHELOR, GEN’l Manage.,. f JJame, - 

fSubhc/Tto your approval, I hope appo inted -j Address, / 'aa'~ - 

^A/mt for V -—--}/fZ Terms. 

J/. &o- ^ 

■^ 5 i 



'Dear Sir; 

^^Stibjecl to your approval^, 

appointed Address. 
'Y^ Terms._ 



CYY ecl t0 y° ur approval, I have appointed j Address ' ~Y . Z ? - ~ 

as yGM Agentfor > ~Z f i 'tSyr'^@ - 

■ZM _IrZ^z 

-^Sn^uy^J __ 

City County of'. 



to your approval, I have appointed 


"(dstT ' ■**«*/, 

. to.-.. . 

J&/rvoAf>j 7?VoeA/ _ 

Territory, ... 




_ *UC^L 

s6c^&&' x£&Zc# ( 

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%yC. ^ ij^pz^u x? 

' A £*sZ , (j 1 ^ / yZ^y ..^-■t-«'V'v^^^'^'' 1 ^^ — 

_ County of --.-i_ State ofad/i 


CHARLES BATCHELOR, Gen'l Manager. f flame 

Dear Sir ; * (Business /iU^wA^vryiojC »d...: 

Subject to your approval, I have appointed \ Address, ZhI2 


Svt-'O — 


Mu ofJLfZOU 



<Dear Sir; business, 

Subjec t to your approval, l have appointed • Address, _ C3H*Q »- 

as -- Terms. J50Qr 

V yAAjOUjO^L^l. '■Territory. 5MLt«kU.*-- 


(j&fi. //q 'o-a-o - Ut&^yvJUAjz*' 

< 2 ^ '^ r /C S~Xy^> 

OUy of ^^£^Cyj^/jL<fL Omm t y uf 

Gmmty of . 



Ttear . Vry*J t sy,jf// , \s- 

t0 y °A? a PP roval > 1 llave appointed | Address, _ <S /%&■ _ 

\ Territory, - 

^rstA-^JLsCsCt 7 

.. . :~»grY^ 

tt,J s^orttTr of.. _ Q^ - > ^je J&c* _ 



SubhcUoyour approval, I have appointed. ] Address. <ZC 

c^t? ^Zsf'/S&r L ^ ^uZCc 

w 244 

3 _ ^ ^ (Business&ttZyv^-.Z^ 

!&Ajecl to your approval, I have appointed ■ Address, < l £_ ^ ~ 

s __ r<yyto>yt 

Scrapbook, Cat. 1138 

This scrapbook covers the period February-December 1885 and contains 
clippings concerning electric railroads. Included are dippings relating to the 
installation and operation of electric motors and railway equipment on New York 
City elevated railroads. There is also material about electric railways in various 
other cities. The spine is labeled "E. R. Co. of U.S. No. 1." The book contains 171 
numbered pages. 

Blank pages not filmed: 27-171. 


Solving Mechanical and Engi¬ 
neering Problems. 

The Plans Complete—To Ex¬ 
hibit Early in May. 

The Hiift H%!(U,luht C< 
motor* for testing tliu nicrl 
practical manner on snino »f 



~%. ~iy, 

a / trd ' 

-\ ‘CJUsi*c£i£L£„'■H ts, 

si' 1 


T iiltEfl- A M.M fliit.lo ti Krec 




Scrapbook, Cat. 1140 

r„l a tJ hiS + SCr ? Pb + °- l< ?-°u e ” the perIod 1885 - 1886 and contains newspaper dippings 
+ e - leC l n f hght u g a ?. d tele S ra P h y- Much of the material deals with 
iti^ation between the Edison Electric Light Company and the Sawyer-Mann 
? ompa " y - T 1 J ,er '; are also clippings concerning the railroad or 
t F p?° PP ; talegra Phi overhead and underground wiring, marine applications of 
the electric light and telegraph, and non-Edison electric inventions. Reprints of 
Edison Electric Light Company circulars appear in some of the clippings. Included 

DmD e Ttvfn P FlorMr r n alning P. urchase of Glenmont and his acquisition of 

property in Florida. On page 134 there is a telegram to Edison about a telegraph 
n. S Tu at il 0n , 0n Staten Island. The inside front cover is inscribed "Patent Suits Vol. 
I. The book contains 134 numbered pages. 

j i mo.8s£*£.. \ 

; 7 j I HarcanUIi Prinline ud Stationary Co., i 


; j | 709 BROADWAY, N.Y. { ! 

: will Duplicate. ^oTl 


-Vo\ rtz 


p/; - *. 


Xirculile fiisi 



I / EtSlOTlel O LIGHT F A1EN13. 



f Arraigning Alleged Infringers Upi 

■.. /m*Lzoc 


/Poaiiblj hero ii ii ohanco for inv 
whoto faith In alleged marreloue I 
deni still lurvlra their Keely : 
experience. An Engliahraao, . 
Dickie, of Loedi, haa rent to an e 
lion of "ahlp jnodela in London 
model of a at4mahip irhioh ho a 
"ill croaa tho Atlantlo add return 
day a. She ia called tho "Aqua-i 
or Wave Ship" and inatoad of clc 
tho water ia to glide oyer tho eu 
Her draught ia ioaignificant oyon 
at reat, but when in motion it deei 
with her apeod until when going t 
preia train rate ahe ia entirely or 



. .,.I Tlio SIHwuut™ corrcsnilSt'oniio I ^ 

L,,^a/rs:: .Jss»3feSsSS 


' C Cr <- C ? 

r £>> M ' 

^ ' batteries, mid could bo made to geeut i 
ly choapen tho expense of operating. • 
The Impression Is, that thu Western 
Union will purchase thu luvuntlon . 
nnd, if 80, it IS hoped Mr. Drawn will 
L ao t one 1>r two niunro millions for hl3 

; ' V/' 

; ,., lK , y\//jEl 



,/5-Lc. -bbjtJL* 

'iJLJ'SJ, feels. 




f Ellison's Religious Holler, 
j A Now York Intorvlowor rocontlj- polu it 
i visit to tko work shop of Mr. Edison, nml! 

• : 3> o') ■ 

...o \ 


-3> ov- 

■ cce- <c/ 


n| oi.. • 

jW-iy/n' .. 

| ^Electric Time System. 
i| XA meotiiig was' held in n I)lm ,. 
iLflimie Hull, Orange, last week 
/respumio to invitation* soul j ®V" 

sa^Kv.2a:r; I tf; 

lr'Sil'T jteadquartors nro at ■ 
7, ^° 111 tlnucl Htreot, Now York ' 

tlioro were some six or eight gontle- i 

enter, rise 01 ' ^ Com “f c<1 with the 
mm, 1 Arranged nrournl the 


BSSXzfifa A * 

| Imving «n mdopondont clock move-' 
neat These, na well n* nil *1!^ 
►thor dials in tho room wero I 

leotetlbywirowifcha clock locate* 

l, 0 ‘l C ™° Btl 'eet depot, and al- 
liougi, the pondlum clock at tho' 

.•»lsi,r the rootdl Zot a 

toL ! °T,: V1 r , th0 cIock «» the 
’ . J ',""/;" 1 ' 111 ' ‘lie Side’ 

tlio loom indicated time bv inin-■ 
ovStoLi't ‘'‘“Samla 

the kin./,,anally crcS^hVotl",!! ! 

move cveryhalfmi.fute or cv ry 
»t no si rf' 0 -• - A J t0r eonsidera- 
,'on 1, . lform “ 1 conver- 

.explanation Hr. Frnrar 


“•»%’ »1> of which I ° ' 

et that a clock located at n ™!° 

■ al point, could bo the ‘gove?,? 


IKS: rfey-S,: 

Salem, 100* Y I 

afield To. 'W IC ? tor » ac »; I 

kton 185, m uc ‘J .“"“V; »00; 

: . \\ 

f The Airis Electricity,—Vi 
miori, of tlio Vesiivian Obse 
Hilda tlint tlio atmospheric 
ty is ustinlly positivo in cion 
or, if nqgativo, nfuli of raiii 
inferred to bo in progress i 
little distance. Two miutli 
two minima daily nre notice 
olcctrie indications,this per 
being disturbed by atmt 
uiovoiiionts. Witii dew, r.v 
overcast sky tlio indioati 
croaso in intensity anil aros 
in spring and antiiinn tiinn 
mer and winter. . A rain : 
positive, but is stirronmli 
negntivo zone, wliicli in 
surrounded by a zone of ] 
electricity. Thunder anil 
ning, according to this obsoi 


Wednesday. ner propelling power to entirely no- 

to yery sangulno tliat she win he a nucccsa. A 
principle on n large ecule, In cane tho EuroKa 


Parla rclativorinnl uux oxpdrionces do 
M. Marcol Derirez aur la transport do la 
forco par l'dleotKoild. Void un rdsrnnd de 
ootto intfSrceaanta, : commumcalion: 

On bo Bouviont'des mdmorablea casals 
nccomplis, 11 y a trols ana environ, par M. 
Marcol Doprez 4 la garo du Nord. Lo rd- 
i snltat on lnt trda considerable. Lo eavant 
dlectricien rdnssit 4 transporter, enr.nn 
trajot do 8 kilometres, an moyen d'nn 111 
tdldgraphiqnc, 46% 4 pen pria do la force 
ongondrdo par nno tnacliino. La forco alnsi 
tranaportdo dtait dgalo 4 7 on 8 chevanx. 

Dopnlalora, oncouragd par cea ddbnta, 
M, Marcol Doprez, an milieu do grandes 
•tiffflcnUds. gr&co &-de$ fflde? eU ■ dea/nT ^ 
chercbes foceesantce, a'pqoreiiivl 1’amdlio- 
ration dqa premiere effQtsJ M. Joseph Ber¬ 
trand, qal a m le tdmoin do ce labour et 
en a conBtatd lea Irnits, dit qn’il eat honroux 
d'annoncer anjonrd’hni 4 l'Acaddmid le sne- 
eda complet dea tentntives de M. Marcel 

Par deux foia, 4 Oreil, on prdsenco’ d’nno 
commission compos do dos. hommes lea pins 
compdtonta, ct prdsiddo par M. Collignon, 
aoua lea yonx dea ingdnlenra do la Compa- 
gnio dn ohomin do fer du Nord, M. Marcel 
Deprez a tranaportd 4 nno distance do 
58 kilometres nno forco do 40 chovaux, 

! c'eat-4-dlro quo, sur 80 chevanx produits 
par la machino gdndratrico, 40 ont dtd 
j recneillis et utilises par la machino rdeep- 

' L’opdration, ajouto M. Bertrand, ost 
d’uno grande ot bello aimplloitd. Lo mou- 
vcment dea machines (160 4 170 toars par 
, minute) n’excddo gndro la vitcaeodes roues 
do locomotlvo. La tonsion dleotriqno a’dld- 
>o jnaqn'a 6,000 volts, sans qn’il y ait dd- 
perdition, ce qni dissipe bion dea craintes 
.conqnes 4 priori ct qni mottaient en ques¬ 
tion la poBsIbllitd dn fonctionnoment dea 
machines. Lo 111 est traversd par un con- 
rant loiblo, qni no ddpasso paa sept ampe¬ 
res. Do co chef encore, 11 n’y a pas 4 rodon- 
tor lea inconvdnionta do l'dchautlomont. 

M. Josoph Bertrand oxprimo la vivo et 
Idgitimo satisfaction quo Ini ont causda cos 
morveillonsos expdriences, dont lea npplica- 
tionB sont suscoptlbloa do rdvolntionnor cor- 
tainos indastrlcs ct do order do nouvolles 
et incalculnblos richesses. 

M. Marcol Doprez so mot 4 la disposition , 
do I’Acaddmio pour renonvelor cea expe¬ 
riences, pour l’oxdcation et la preparation 
deaqnolloa.M. do Kothsohild, aveo uno libd- 
ralltd qn’on no sanrnlt trop loner,.n'it pus 
ddponBd moins do 800,000 franca. 


rEloctrto lighting Is mil Id ItHSfoncj and U 
to OChtOTO IU gteeteBt triumph,. . Tbat a mil 
eronlnully eupoticdo i other methods oi aril 
Ode) lllumionilou do lolelllconi )>orion doobiM 
botlbo preclso manner of Its -.npptieatlon lot; 
particularpurporea Is still undetermined. Tbo 
Flooeh Imagination In Terjr fertile,and In Parle 
tbo fctelbllll; la being dlicutacd o! lighting tbo 
Whole city with ono Imrooneo olectrlo globo, 
clerntod to tbo proper height, no orllOclel euo, 


qalte possible tbit It would bo tbo most con* j, 
voolont and oconumlcal plan of Hlunjlnatlujj so || 
largo an aroa. Villages In this country have It 


/, /; .9 7 


i^r»X£ --- K *0 Hh- 

tf '/* ^• c ° a '^^ 

S'. U, U-a- ^ 

J- • L -~—t1 

. - it -i AjkZtLo vjf 
^ c~ 

. . SUr^-U. . l- 

SO bJKKj^A C^o-v —W-* 

o y> y> 


Ity of a now invention, whereby any 
iinillnr with ttio 'Morse alphabet may] 
itold misery and confusion upon his 1 
utures. -’hero is a mystery about the 
of this new infernal machine, which 
its terrors without mitigating it 8 * 
a »omo way or other, messages (with- 
to length, language, or previous con- 
morality, and without any material* ! 
collusion whatever) can be mado to 
(1 from (ho tin roof of n moving rail- ' 
nnd tlio wires of on ordfnnry tulo- i 
iss tlio void of space,—coniimr nml 

[ Electricity 1» not yet 
I wondero. Edison Imi 
I telegraphing from tnovf 
[ a wsy as to mnko it of 
t and there lano doubt tl 
yeart) all railroad. trait 
operator and bo run by 

:»}> >>> 

» ' 

1 ))» 


Reel duplication of the whole or of 
any part of this film is prohibited. 
In lieu of transcripts, however, 
enlarged photocopies of selected 
items contained on these reels 

A Note on the Sources 

The pages which have been 
filmed are the best copies 
available. Every technical 
effort possible has been 
made to ensure legibility. 



Alfred P. Sloan Foundation 
Charles Edison Fund 
The Hyde and Watson Foundation 
Geraldine R. Dodge Foundation 


National Science Foundation 
National Endowment for the Humanities 


Alabama Power Company 
Amerada Hess Corporation 

Atlantic Electric 

Association of Edison Illuminating 

The Boston Edison Foundation 
Cabot Corporation Foundation 
Carolina Power and Light Company 
Consolidated Edison Company of 
New York, Inc. 

Consumers Power Company 
Corning Glass Works Foundation 
Duke Power Company 
Exxon Corporation 
Florida Power & Light Company 
General Electric Foundation 
Gould Inc. Foundation 
Gulf States Utilities Company 
Idaho Power Company 
International Brotherhood of Electrical 

Iowa Power and Light Company 

Mr. and Mrs. Stanley H. Katz 
Matsushita Electric Industrial Co., Ltd. 
McGraw-Edison Company 
Middle South Services, Inc. 

Minnesota Power 

New Jersey Bell Telephone Company 
New York State Electric & Gas 

North American Philips Corporation 
Philadelphia Electric Company 
Philips International B.V. 

Public Service Electric and Gas 
RCA Corporation 
Robert Bosch GmbH 
San Diego Gas & Electric 
Savannah Electric and Power Company 
Schcring Plough Foundation 
Texas Utilities Company 
Transamerica Delaval Inc. 
Wcstinghousc Educational Foundation 
Wisconsin Public Service 



Rutgers, The State University of 
New Jersey 

Edward J. Bloustcin 
T. Alexander Pond 
Tilden G. Edelstein 
John Gillis 

New Jersey Historical Commission 
Bernard Bush 
Howard L. Green 

National Park Service, Edison 
National Historic Site 
Roy W. Weaver 
Edward J. Pershey 
Smithsonian Institution 
Bernard Finn 
Arthur P. Molclla 


James Brittain, Georgia Institute of Technology 
Alfred D. Chandler, Jr., Harvard University 
Neil Harris, University of Chicago 
Thomas Parke Hughes, University of Pennsylvania 
Arthur Link, Princeton University 
Nathan Rcingold, Smithsonian Institution 
Robert E. Schofield, Iowa State University 


William C. Hittinger (chairman), RCA Corporation 
Edward J. Bloustein, Rutgers, The State University of N.J. 
Cees Bruynes, North American Philips Corporation 
Paul J. Christiansen, Charles Edison Fund 
Philip F. Dietz, Westinghouse Electric Corporation 

Thomas A. Edison Papers 

Rutgers, The State University 
endorsed by 

National Historical Publications and Records Commission 
18 June 1981 

Copyright © 1987 by Rutgers, The State University 

All rights reserved. No part of this publication includingany portion of the guide and index or of the microfilm may 
be reproduced, stored in a retrieval system, or transmitted in any form by any means—graphic, electronic, 
mechanical, or chemical, Including photocopying, recording or taping, or information storage and retrieval 
systems—without written permission of Rutgers, The State University, New Brunswick, New Jersey. 

Tlie original documents in this edition are from the archive fit the Edison National Historic Site at West Orange, 
New Jersey. 


Ji*oru rapeA^ 

( 1879 - 1886 ) 

Thomas E. Jeffrey 

Microfilm Editor and Associate Director 

Paul B. Israel 
Assistant Editor 

Mary Ann Hellrlgel Douglas G. Tarr 

David W. Hutchings Robert A. Rosenberg 

Editorial Associates 

Leonard DeGraaf 
Joseph P. Sullivan 
Alan Stein 
Karen Kozak 

John Deasey 
Barbara B. Tomblin 


Jacquelyn Miller 
Marla Antonakakis 

Keith A. Nler 
Assistant Editor 

Reese V. Jenkins 
Director and Editor 


Rutgers, The State University of New Jersey 
National Park Service, Edison National Historic Site 
New Jersey Historical Commission 

Smithsonian Institution 

University Publications of America 
Frederick, Maryland 

Association for 
Information and Image